Alternatives to CAD6engine

Compare CAD6engine alternatives for your business or organization using the curated list below. SourceForge ranks the best alternatives to CAD6engine in 2026. Compare features, ratings, user reviews, pricing, and more from CAD6engine competitors and alternatives in order to make an informed decision for your business.

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    Nutrient SDK
    Nutrient is the comprehensive solution for all your PDF needs, offering tools that effortlessly integrate and operate PDF functionality across any platform. 1. SDK PRODUCTS Integrate robust PDF functionality into iOS, Android, Windows, web (JavaScript), or any cross-platform technology, providing capabilities such as PDF viewing, markup, collaboration, and more. 2. LIBRARIES Utilize our potent .NET and Java libraries to boost your backend applications with batch processing of redactions and PDF forms, OCR’d scanned text, and editing of PDF documents, directly from your application server. 3. PROCESSOR Our dynamic PDF microservice, Processor, enables swift generation of PDFs from HTML, including HTML forms, along with Office-to-PDF conversions, OCR, redaction, and XFDF merging and exporting. 4. PDF API Use hosted PDF API to generate, convert, and modify PDF documents in your workflows. We manage the development and server administration, letting you focus on what you do best.
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    Pdftools

    Pdftools

    PDF Tools

    Whether you have thousands of documents or millions, Pdftools has the products and services to help make processing a breeze. Designed for document-heavy industries, Pdftools’ suite of SDKs and APIs are here to make your document workflows easier, faster, and stress-free. Built on SDKs and APIs, the Pdftools products integrate seamlessly into your existing (or new) systems and applications. Process thousands of documents every minute. Our tools are precision-engineered to be efficient and run at blazing speeds. We’re engineers at heart, so we’re only satisfied with the most reliable, orderly, and usable, and well-documented platforms. Shrink file sizes down, but keep the quality and interactivity. Your documents will always be compliant for long-term archiving. We’ve obsessed over every detail in our products, and documented everything so it’s easy to get started.
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    Starting Price: $0/month/user
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    Adobe PDF Library SDK

    Adobe PDF Library SDK

    Datalogics Inc.

    Developers rely on Datalogics to provide the most comprehensive PDF SDKs in the industry. We are SOC 2 Type 2 certified. Global OEMs, SaaS and enterprise end-users rely on Adobe PDF Library to automate the creation, editing and management of PDFs. An Adobe partner, our SDK uses the same source code as Acrobat for stability, reliability and quality results. Flexible programming language and platform options include .NET, .NET Framework, Java and C/C++ on Windows, Linux, MacOS; NuGet & Maven; pdfRest API Toolkit Container option. Our extensive documentation includes getting started guides, API references, and hundreds of sample code examples on GitHub to help developers precisely create and define PDF workflow solutions. Free trial with proof of concept support, join us on Discord or use our AI assistant for help, or set up a time to talk to one of our engineers about your project. Our expertise and support is the reason we have a 91% customer retention rate.
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    pdfRest

    pdfRest

    Datalogics Inc.

    pdfRest API Toolkit was made by developers, for developers. Rapidly integrate PDF workflows with any business application, simply and seamlessly. pdfRest API Toolkit includes all of the PDF processing tools you'll need, to make your job easy. PDF to Word, Excel, PowerPoint, Image, Add to PDF, Query PDF, Extract Text, Convert to PDF, Convert to PDF/A, PDF/X, Compress PDF, Linearize PDF, Flatten Forms, Transparencies, Annotations, Layers, Merge /Split PDF, Encrypt/Decrypt PDF, Restrict PDF, Watermark PDF, Sign PDF, Redact PDF, Import/Export Form Data, Rasterize PDF, PDF to Markdown, XFA to Acroforms, Set Page Box, Create Blank PDF, Delete PDF, Convert PDF Colors, OCR PDF, API Polling, Upload Files, Zip Files. Get up and running fast with the pdfRest Postman Collection or start from functional sample code in NodeJS, .NET, JavaScript, Python, PHP, and cURL from the pdfRest GitHub repository. Gold-standard processing powered by Adobe® PDF Library™ ensures the highest quality results.
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    Starting Price: $0 per month
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    Foxit PDF SDK

    Foxit PDF SDK

    Foxit Software

    Our high-performance libraries add robust PDF functionality to enterprise, mobile, and cloud applications across all platforms: Web, Windows, Android, iOS, Mac, UWP and Linux, using the most popular developer languages and environments. Build on a modern tech stack that integrates tightly with the platform you’re working on. We continuously improve our products and they gain new features every month. We grow with you as your requirements change and your project evolves. Our core API is designed from the ground up to deliver a seamless development experience across all platforms, without requiring deep PDF knowledge. Foxit is known for our management of edge cases, and for working with 100% of PDF files across all standards. With only one SDK to work with, you dramatically reduce your exposure to third parties. We provide sample, projects, demos, API docs and more for every single feature in the PDF SDK to get you up to speed quickly. You will receive support by real developers.
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    Qdrant

    Qdrant

    Qdrant

    Qdrant is a vector similarity engine & vector database. It deploys as an API service providing search for the nearest high-dimensional vectors. With Qdrant, embeddings or neural network encoders can be turned into full-fledged applications for matching, searching, recommending, and much more! Provides the OpenAPI v3 specification to generate a client library in almost any programming language. Alternatively utilise ready-made client for Python or other programming languages with additional functionality. Implement a unique custom modification of the HNSW algorithm for Approximate Nearest Neighbor Search. Search with a State-of-the-Art speed and apply search filters without compromising on results. Support additional payload associated with vectors. Not only stores payload but also allows filter results based on payload values.
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    ByteScout PDF Extractor SDK
    PDF Extractor’s high-performance engine works flawlessly under pressure, making it an ideal solution for processing large quantities of PDF reports, indexing large PDF libraries, and more. No matter how complex your PDF document’s structure is, you’ll find that PDF Extractor is easy to use and integrate into your existing systems seamlessly. PDF Extractor can process damaged files that have a complex structure, can repair malformed text that otherwise would need to be processed manually. Full set of advanced tools: turn scans into searchable PDF, split and merge PDF, remove text, analyze, find, detect and remove sensitive data and personally identifiable information (PII) from PDF and scanned documents. Extracts tables and text objects from PDF to Excel with .XLS and .XLSX as output.
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    PDFBox

    PDFBox

    Apache Software Foundation

    The Apache PDFBox® library is an open-source Java tool for working with PDF documents. This project allows the creation of new PDF documents, manipulation of existing documents and the ability to extract content from documents. Apache PDFBox also includes several command-line utilities. Apache PDFBox is published under the Apache License v2.0. Extract Unicode text from PDF files. Split a single PDF into many files or merge multiple PDF files. Extract data from PDF forms or fill a PDF form. Validate PDF files against the PDF/A-1b standard. Print a PDF file using the standard Java printing API. Create a PDF from scratch, with embedded fonts and images. Save PDFs as image files, such as PNG or JPEG and digitally sign PDF files. See also the export control information related to the encryption features included in Apache PDFBox.
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    jPDFWeb

    jPDFWeb

    Qoppa Software

    jPDFWeb is a Java library to convert PDF documents to SVG / HTML5. The library can save to the local file system or to an output stream to be able to serve the document directly to a client browser when working within a J2EE server. jPDFWeb is built on top of Qoppa’s proprietary PDF technology so you do not have to install any third party software or drivers. Since it is written in Java, it allows your application to remain platform independent and run on Windows, Linux, Unix (Solaris, HP UX, IBM AIX), Mac OS X and any other platform that supports the Java run-time environment. Features: -Convert PDF Documents to HTML5 / SVG -Convert Microsoft Word & Excel Documents to HTML5 (when combined with jOfficeConvert) -Convert Text -Convert Images -Convert Vector Graphics -Convert Annotations, Links and Form Field Data -Convert Digital Signature Validation Status -Export Page Thumbnails -Support for CJK fonts -Support for latest PDF format
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    jPDFProcess

    jPDFProcess

    Qoppa Software

    jPDFProcess is a Java library to create and manipulate with PDF documents that can be used to deliver customized PDF content to your users or to process incoming PDF content. The library has a simple interface to work with PDF documents and is designed to be integrated easily and seamlessly into your PDF document workflow. jPDFProcess provides the functionality found in many of our other libraries, including printing, setting permissions and security, creating and assembling documents, digital signing, working with form fields, converting to images, extracting text and more. The library can work with PDF documents from files, URLs and input streams and can save documents to files and output streams, so it can serve documents from a J2EE application directly to a client browser without any temporary files. jPDFProcess is built on top of Qoppa’s proprietary PDF technology so no external PDF Software is required.
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    JPedal

    JPedal

    IDR Solutions

    JPedal is a versatile Java PDF Library for displaying, converting, printing, and parsing PDFs in Java applications. With over 20 years of development, it supports a wide range of PDF files. Key features include: -PDF to Image Conversion: Converts PDFs to images in various formats. -Java Swing PDF Viewer: Offers multi-page display, search, printing, and annotation editing. -Text and Image Extraction: High-quality extraction of text and images from PDFs. -PDF Search: Supports searching with wildcards and regular expressions. -Form & Annotation Handling: Supports XFA and AcroForms, enabling form data access and annotation editing. -Document Manipulation: Allows deleting, merging, splitting, and optimizing PDFs. -Security & Performance: Runs locally without third-party dependencies, processing PDFs up to 3x faster than alternatives.
    Starting Price: $950 one time fee
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    PDFKit.NET 5.0

    PDFKit.NET 5.0

    TallComponents

    Create and manipulate PDF documents. Split, append, stamp, encrypt, extract, fill, and more. PDFKit.NET is a 100% managed (verifiable) .NET class library for creating and manipulating PDF documents. It consists of just a single assembly that can be xcopy-deployed. It has no dependencies other than the .NET framework. Central to PDFKit.NET is a consistent and highly intuitive object model consisting of classes like document, page collection, page, canvas, shape, bookmark, annotation, field, etc. The focus of the development team is always to ease the task of integrating our class library into a larger application. Fill text fields, checkboxes, radio buttons, etc., and save the form either editable or flattened with the PDFKit.NET 5.0. With PDFKit.NET 5.0 you can populate and consume dynamic XFA documents with the new XFA processor API. Extract all graphics on a page as a collection of shapes with PDFKit 5.0. Shapes can be text, images, and curves.
    Starting Price: $990 per year
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    iText

    iText

    Apryse

    Now part of the Apryse family, iText is one of the best-documented and most versatile PDF SDKs in the world. The open-source iText Core library features a powerful layout engine and intuitive high-level APIs for document creation and manipulation, digital signing and validation, and much more. It has built-in support for PDF 2.0, all variants of PDF/A and PDF/UA, FIPS-140-2 and the very latest ISO standards for digital signatures and encryption. You can extend iText's capabilities even further, with add-ons for comprehensive HTML/XML and CSS templating, global language and writing systems, secure document redaction, OCR, document optimization, and working with dynamic XFA. iText Core is free to use under the AGPLv3 license, while a commercial license releases you from the AGPL terms and gives you professional support and maintenance. Visit the iText website to try the entire iText Suite free for 30 days, while keeping your IP safe under iText's commercial license terms.
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    novaPDF

    novaPDF

    Softland

    Using novaPDF Pro you can easily create high quality searchable PDF files in an affordable and reliable way from any Windows application. It installs as a printer driver and helps you generate the PDF files by simply selecting the "print" command from any application (you can convert Word documents, Excel sheets, PowerPoint presentations, AutoCad drawings, emails or web pages). You can password protect the PDF files you create and permissions can be restricted to prevent the document from being viewed, printed, modified, copied or annotated. Your PDF files will be secured with 40-bit and 128-bit encryption algorithms. Features include: customizable resolution, PDF security, PDF links, PDF bookmarks, text/image compression, profiles and more. novaPDF also includes a PDF SDK for developers that want to integrate PDF creation capabilities in their software.
    Starting Price: $19.99 (one time payment)
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    jPDFEditor

    jPDFEditor

    Qoppa Software

    jPDFEditor is intended for developers and integrators. For end-users, Qoppa Software offers PDF Studio, our advanced desktop PDF editor for Mac, Windows and Linux based on our same solid PDF technology. jPDFEditor can load documents from files on a local or network drive, from a URL and from Java input streams for documents that are generated runtime or come from other sources, such as a database. After editing documents, the library can save them. Features: -Display PDF files -Print PDF files -Convert text and image files (gif, png, jpg, tiff) to PDF on the fly -Fill and save interactive PDF forms -Markup PDFs (all PDF annotations and text markups supported) -Digitally sign PDF files -Content editing -Redaction -Optional OCR module -Optional Comparison module -Access jPDFProcess powerful PDF manipulation API -Text search, selection, copy -Easy navigation with thumbnail, bookmark, annotation, signature views -Advanced tools: zoom, loupe, snapshot, pan and zoom
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    ByteScout PDF Suite
    Fast to market engine to setup reading of unstructured PDF, images, scanned documents using powerful and easy to use extraction templates editor. Create templates in a visual editor with no programming or coding required. Supports fields, tables, pdf forms, multi-paged tables, unstructured tables. Use OCR engine with multi-language OCR support, re-use built-in AI-powered templates. Extract text, tables, images, attachments and other data from PDF, Reads Tables to CSV, Gets text from Images, Extracts Attachments, supports OCR with one or more languages. Handle noisy images and damaged texts transparently with the built-in OCR filters. Convert to common data structures like TXT, JSON, XLS, XLSX, CSV or XML. AI powered tables and document analysis functions.
    Starting Price: $10 per user per year
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    PDFix SDK
    PDFix SDK provides the power to make existing PDF files accessible automatically. It helps you convert PDF files to high-quality accessible PDF/UA . Our auto-tag feature recognizes all important structures in your documents like texts, images, tables, headers/footers, headings, lists, and reading order. Automated batch processing saves time, and reduces remediation costs. Have you ever tried to get any data from various PDF files? Then you know how painful it is. Machine learning techniques help us to create an algorithm that allows you to extract data in an easily readable structured way. Thanks to that, you can recognize all logical structures as texts, headings, images, tables, headers/footers, list, etc. You can also scrape these data from your PDFs and convert them to your favorite output as HTML, CSV, JSON, or XML.
    Starting Price: $490 per year
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    PDF Viewer SDK ActiveX

    PDF Viewer SDK ActiveX

    Viscom Software

    It is PDF Viewer SDK, fast open PDF, support Autofill PDF form fields and print a PDF, export text to text file, xml file, html file and searching the text with C++ , C#, VB.Net , VB6, Delphi, Vfp, MS Access.
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    AmindPDF

    AmindPDF

    AmindPDF

    AmindPDF's user interface is very user-friendly and makes the operation of PDF easy. It can recognize PDF text as paragraphs or whole blocks of text, allowing users to edit text directly and smoothly, like in MS Word. for PDF protection, it allows adding passwords, setting document permissions, placing signatures, adding watermarks to PDF It also supports batch operations to process files, such as merge/split tool, compression tool, creation tool, Bates numbering tool, and conversion tool, so users can process multiple PDF files at once. AmindPDF is available for a number of platforms: Windows, iOS, and Android. Users are able to use the same PDF tool on a computer or mobile phone. So AmindPDF let you process or edit PDFs anytime, anywhere.
    Starting Price: $9.90
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    PDF Conversion SDK

    PDF Conversion SDK

    Visual Integrity Technologies

    Add PDF Features with 2 API Calls Open, Edit, and View PDF. All that's needed is two API calls and a configuration file. Within a day, you can add, open, import, edit and view PDF features in your app. When formats don't match one-to-one, the SDK neutralizes the differences. This includes adding cropping, fills, color management and fonts. The PDF Conversion SDK processes all PDF versions including ISO Standard PDF 2.0. Any PDF from file or print-ready memory is valid input. Conversions flow straight through without intermediate steps or compromised quality. No printer driver. The PDF Conversion SDK runs on Windows, MacOS and Linux. It supports .NET. Example code included. Removes redundant information & compresses data. This ensures great performance for fast web and application viewing. Search for objects and text strings. Convert PDF to your native file format. Change the contents of a PDF page. Extract images from PDF. Retrieve metadata from PDF (layers, geospecification, etc).
    Starting Price: $199 per year
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    Investintech PDF Library SDK

    Investintech PDF Library SDK

    Investintech PDF Solutions

    Seamlessly integrate robust PDF editing, parsing and rendering functionalities into your projects with PDF library SDK. Multi-platform shared library (dll, so and dylib) with C-compatible interface. C#.Net, Python, Java 8, C++ 11, libraries/modules. APIs for Linux, Windows, and Mac. Numerous interface functions for transforming and creating new content for PDF files, providing a huge variety of options and broad flexibility for implementation tailored to the specific needs of your project. Efficient utilization of multi-core CPUs for stream decoding and content rendering purposes achieved by closely following portable document format specification guidelines. Apply electronic signatures (with or without cryptographic security layer). PDF encryption & decryption (a password-based encryption handler). Document structure manipulation (create, delete, move, insert, extract, resize, and rotate pages).
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    jPDFPrint

    jPDFPrint

    Qoppa Software

    Print Acrobat PDF documents directly from your Java application or web application, with or without user intervention. jPDFPrint is a Java library that can load and print PDF documents. Simply call the library to send documents to the printer. jPDFPrint is built on top of Qoppa’s proprietary PDF technology so you do not have to install any third party software or drivers. Since it is written in Java, it allows your application to remain platform independent and run on Windows, Linux, Unix (Solaris, HP UX, IBM AIX), Mac OS X and any other platform that supports the Java runtime environment. Features: -Print any PDF documents -Print with or without user intervention (silent print) -Print documents from files, URLs or Java input streams -Support for latest PDF format -Flexible printing options -Runs on Java 6 and above -Works on Windows, Linux, Unix, Mac OS X (100% Java) -No third party software or drivers necessary
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    Aquaforest SDK

    Aquaforest SDK

    Aquaforest

    Aquaforest SDK is a powerful toolset for processing PDFs including PDF content extraction, searchable PDF creation, OCR with standard (Aquaforest) engine, OCR with extended (Canon IRIS) engine, and handwriting OCR options via Google and Microsoft APIs. Advanced PDF and barcode toolkit, high performance with support for up to 64 cores. The SDK is able to analyze PDF documents and automatically extract name/value pairs. The SDK has a wide variety of PDF manipulation capabilities including PDF merging, PDF attachment processing, PDF content extraction, XMP metadata processing, PDF/A validation, and more. The standard OCR engine supports 23 languages and is included in every edition of the SDK. This provides an interface to Google and Microsoft’s cloud OCR services which can be especially useful for special cases such as handwriting recognition. The SDK is able to read and recognize most standard barcode types.
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    TechPDFKit

    TechPDFKit

    PDF Technologies

    Seamlessly enable high-performance PDF viewing, annotating, editing, signing, and more in your apps or any mobile, desktop or server framework. Build on a modern tech stack that integrates tightly with the platform you're working on. We grow with you as your requirements change and your project evolves. Maintain a smooth viewing experience in even the most complex PDF documents with a fast and battle-tested rendering engine. Lightning-fast search delivers near-instant results to your users. Markup PDFs with highlights, stamps, and comments, draw and add notes to PDFs, or create custom annotations. Make use of many more annotation types, each with its own style controls. Apply electronic and digital signatures in PDFs to speed up paperless workflow and secure document signing. Certify, and validate certificate-based documents you receive. Automatically detect font and size of the original text content. Easily update PDF documents by changing text and images.
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    jPDFViewer

    jPDFViewer

    Qoppa Software

    Integrate a PDF reader right into your Java application or website. jPDFViewer is a self contained Java component that can be deployed in a Java application or a web application (in a web page as an applet, or a Java webstart application). Since it is written in Java, it allows your application to remain platform independent and run on Windows, Mac, Linux and Unix. jPDFViewer can load documents from files on a local or network drive, from a URL and from Java input streams for documents that are generated runtime or come from other sources, such as a database. Main Features: Read and display PDF files on any platform that supports Java Print PDF files Fill interactive PDF forms View all markup annotations Validates and displays digital signatures Text search and selection Advanced tools: zoom, loupe, snapshot, pan and zoom Easy navigation with different views: thumbnails, bookmarks, annotations... Customizable toolbar and user interface Support for all image types
    Starting Price: $2,000
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    jPDFImages

    jPDFImages

    Qoppa Software

    jPDFImages is a Java library to export images from PDF files and to import images into PDF files. jPDFImages can create images from pages in a PDF document and export them as JPEG, TIFF, or PNG images. Additionally, it can return the image of any page in the document to the host Java application as a BufferedImage for further processing or to save in different formats. jPDFImages can also create documents or add pages to existing documents by importing TIFF, JPEG and PNG images. After creating or modifying a document, the library can save to the local file system or to an output stream to be able to serve the document directly to a client browser when working within a J2EE server. Features: -Export PDF document pages as JPEG, TIFF or PNG images. -Import images into new or existing PDFs as new pages. -Support for PDF 2.0 (latest PDF format). -Save to the file system or to Java output streams. -Works on Windows, Linux, Unix and Mac OS X (100% Java).
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    LEADTOOLS PDF SDK
    With just a few lines of code, LEADTOOLS libraries empower developers with a comprehensive PDF API to implement reliable and multi-threaded PDF functionality, without the need for third-party dependencies like Acrobat. Robust PDF controls to read, write, convert, and view PDF files can be combined with state-of-the-art OCR, ICR, OMR, forms recognition, virtual printing, and scanning APIs within LEADTOOLS to create complete solutions that utilize the PDF format. Load and view any PDF file using the document viewer API framework. Tested against thousands of PDF documents, LEADTOOLS PDF SDK libraries provide impeccable viewing accuracy and speed that tops many market-leading PDF reading applications. LEADTOOLS accounts for common errors and differences between PDF file versions to give programmers peace of mind, minimize their testing phase, and create the best PDF applications faster.
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    PDFlib

    PDFlib

    PDFlib

    PDFlib GmbH is completely focused on PDF technology. Customers are using our products since 1997. In 2006 we were one of the founding members of the PDF Association (formerly PDF/A Competence Center). The company closely follows development and market trends such as ISO standards for PDF. PDFlib GmbH products are distributed all over the world with major markets in Europe, North America and Japan. PDFlib is a well-established developer component for generating and manipulating PDF documents. PDFlib’s main targets are dynamic PDF creation on a web server and PDF creation in any kind of server, desktop or mobile application. You can use PDFlib to dynamically create PDF documents from database contents, similar to dynamic Web pages. Since 1997 PDFlib has proven itself in a wide range of use cases and development environments. Application programmers use PDFlib to create PDF output with text, images, graphics and interactive elements.
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    Emacs
    At its core is an interpreter for Emacs Lisp, a dialect of the Lisp programming language with extensions to support text editing. Content-aware editing modes, including syntax coloring, for many file types. Complete built-in documentation, including a tutorial for new users. Full Unicode support for nearly all human scripts. Highly customizable, using Emacs Lisp code or a graphical interface. A wide range of functionality beyond text editing, including a project planner, mail and news reader, debugger interface, calendar, IRC client, and more. A packaging system for downloading and installing extensions. Built-in support for arbitrary-size integers. Text shaping with HarfBuzz. Native support for JSON parsing. Better support for Cairo drawing. Portable dumping used instead of unexec. Support for XDG conventions for init files. Additional early-init initialization file. Built-in support for tab bar and tab-line. Support for resizing and rotating of images without ImageMagick.
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    Graphic Tracer Professional
    Graphic Tracer Professional give you Fast & Easy Bitmap to Vector Conversion using advanced Sensedge™ Technology AutoTrace Black & White, Greyscale, and Color Images Automatic Font Recognition with Clean-Up and Replacement Compatible with All Major Graphics Programs High Quality Raster To Vector Conversion Produce perfect vector originals with a minimum of effort Intuitive editing tools transform scanned or imported artwork into perfectly shaped scalable graphics , which can be used for almost any purpose. Graphic Tracer can quickly identify typefaces used in scanned text or bitmap files, even if the text has been distorted in a variety of ways. Search a database of over 100,000 fonts plus any fonts in collections that you own in seconds! Quickly replace poor quality type. Logos and graphics re-created in Graphic Tracer can be resized without loss in quality. They can be exported as AI, EPS, DXF, PLT, BPM and SVG for use in almost any other graphic software.
    Starting Price: $15.00/month/user
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    MuPDF

    MuPDF

    Artifex Software

    Add powerful PDF functionality to all of your software application projects. MuPDF is a highly versatile, customizable PDF SDK that can be used as a PDF renderer, viewer, or library. The tiny footprint and lightning-fast performance make MuPDF a perfect fit for mobile browsers, eBooks, and embedded applications where small size is key. MuPDF supports a variety of interactive features including annotations, form filling, digital signatures, redactions, text search, and progressive loading. The wide range of input and output formats and our full range of platform support deliver a flexible solution to easily and successfully fulfill your project’s unique needs. MuPDF supports PDF, XPS, OpenXPS, EPUB, FictionBook 2 and CBZ. The MuPDF API easily integrates with all of the major platforms including Android, iOS, Linux, macOS, OpenBSD, and Windows. C++ and Python bindings have been added making it easy to use the MuPDF library from these languages.
    Starting Price: $749/per platform*
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    VisualCAD

    VisualCAD

    MecSoft Corporation

    VisualCAD with its modern user interface, makes creation of 2D and 3D curves as well as 3D surfaces, solids and meshes easy and efficient. With a complete geometry creation and manipulation tool-set and fast shaded graphics and rendering, VisualCAD is a perfect system for first time CAD users and/or educational users. It includes numerous file importing capabilities such as DXF/DWG, IGES, STEP and other file formats making it also an ideal companion system for your mainline CAD system.
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    jOfficeConvert

    jOfficeConvert

    Qoppa Software

    Convert Microsoft Word documents and Excel spreadsheets to PDF directly from your Java applications, without user intervention and without the need for any other software. jOfficeConvert is a Java library that can read and render MS Word and Excel documents natively to convert to PDF, to convert to images, or to print the documents automatically. The library is 100% Java so it can run on any platform that supports Java, including Windows, Linux, Unix (AIX, Solaris Spark, Solaris Intel, HP-UX) and Mac OSX. The library does not use any third party software or native calls, it can be run in a server environment or integrated into a desktop application. Main Features Convert Word documents (.doc, .docx) to PDF Convert Excel documents (.xlsx) to PDF Convert Word, Excel to HTML5 (when combined with jPDFWeb) Merge multiple Word, Excel files into a single PDF document Set permissions and passwords on resulting PDF documents.
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    Photo Variants

    Photo Variants

    Photo Variants

    Photo Variants is innovative photo editing software for Windows. Adjust, edit, retouch photos. Create variants and save in one project. Apply stunning effects. Add raster and vector graphics. Create graphic design elements from scratch. Key features: * RAW support; * Convenient photo culling; * A proprietary PVAR file format consisting of several variants; * Easy one-click creation of variants using presets; * Professional color adjustment; * Retouching tools; * Filters for any purpose; * Layer support; * Library of ready-to-use fonts, icons, masks and other graphics. * Batch file conversion; * Support for hundreds of graphic formats.
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    ByteScout PDF Viewer SDK
    PDF Viewer SDK is a visual control to create your own PDF reader in .NET desktop apps. Controls for viewing PDF files in your .NET desktop app, works offline with no Internet connection required, helper function zoom in and zoom out, change page, copy text to the clipboard, search text, night mode for PDF reading (sets the background to black, inverts text). You will find a mixture of very sophisticated technologies in all our tools. It helps them to achieve better performance. We prepared lots of source code samples and documentation helping to quickly start working with our products. You will find a mixture of very sophisticated technologies in all our tools. It helps them to achieve better performance. We keep updating our SDKs, API, and free apps all the time. Also, our team is ready to fix bugs and issues if you find any. We prepared lots of source code samples and documentation helping to quickly start working with our products.
    Starting Price: $881.99 one-time payment
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    ByteScout PDF SDK
    The Bytescout PDF Generator SDK is a unique and multi-functional product available for developers of any level and experience. It is flexible for new updates and changes – see SDK updates here PDF generation is a complex process where this SDK is the perfect help to cover all possible work. You will facilitate the creation of rich reports allowing PDF SDK features. All you need to do is properly install the program and you can get started. The software runs directly on your computer without complicating the process. Many developers voted for Bytescout products when it came to .NET PDF generation. If you need an SDK for JS, you can check the Javascript PDF generator and its updates. In order to extract text from PDF – just see the PDF Extractor page on the website. PDF rendering can be helpful when converting documents to images or doing OCR processing. If you just need to add a viewing PDF functionality for your documents, try the C# PDF library.
    Starting Price: $1,102.99 one-time payment
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    Ghostscript
    Ghostscript is a powerful PostScript and PDF interpreter developed by Artifex, offering a rendering engine and comprehensive graphics library for high-quality document processing. It handles interpreting, processing, and rendering PostScript files and PDFs, supports complex page description language features, and includes utilities for converting, rasterizing, and manipulating documents. Ghostscript also has .NET bindings (Ghostscript.NET) so it can be integrated into .NET applications, and there’s an enterprise version (Ghostscript Enterprise) that extends capabilities to reading and processing common office documents like Word, PowerPoint, and Excel. The product is designed for precision rendering, color space management, and reliable output, making it suitable for both programmatic document workflows and production environments.
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    Foxit Document Workflow APIs
    Foxit APIs are a suite of scalable, cloud-based developer tools designed to integrate high-performance PDF processing, document generation, and eSignature capabilities directly into applications and workflows. Built with an API-first approach, they provide modular endpoints that allow developers to generate, edit, display, convert, and manage documents programmatically, enabling full control over document lifecycles from creation to signature and archival. It supports automation at scale by allowing users to generate PDFs and DOCX files from structured data, eliminating manual document creation and ensuring consistent formatting across workflows. It also enables advanced document analysis by extracting content and metadata for compliance, indexing, and business intelligence use cases. Through REST APIs, developers can convert files between formats, merge, split, and manipulate documents, as well as embed PDF viewers directly into web applications with customizable controls.
    Starting Price: $112.39 per year
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    Cecilia

    Cecilia

    AJAX SOUND STUDIO

    Cecilia is an audio signal processing environment aimed at sound designers. Cecilia mangles sound in ways unheard of. Cecilia lets you create your own GUI using a simple syntax. Cecilia comes with many original built-in modules and presets for sound effects and synthesis. This version mainly fixes Windows 64-bit version that crashes when trying the open a MIDI device. Cecilia uses the pyo audio engine created for the Python programming language. Pyo allows a powerful integration of the audio engine to the graphical interface. Since it’s a standard python module, there is no need to use an API to communicate with the interface. In the MIDI tab, the user can choose a MIDI driver and a MIDI controller for input. The user can choose a sound file player (or audio sequencer), a sound file editor and a text editor to be used with Cecilia5. The Speaker tab offers different options related to the audio parameters of Cecilia5.
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    PDFspy

    PDFspy

    Apago

    PDFspy is the ultimate “get info” utility for your PDF documents. It can extract a comprehensive list of attributes from a PDF file into an XML-based format. Support for PDF 1.7/ISO 32000 (Acrobat 9, X, DC). Element now shows CMYK separations that are actually used by text and vector elements. The new element that shows the number of shading objects in a PDF file. A restored output being written to stdout if -o option not used, recommend using -quiet option when writing to stdout. Fixed calculation of page labels. An improved text extraction algorithm. Calculates color simulation values for ICCBased, separation and DeviceN colorspaces. Improved Unicode, ISO Latin, and AdobePDF character set support. Fonts usage (name, type, embedding & subset status, use of Unicode). Asset management system, extract page count, metadata, font & image information. Document management, determine text or image-only documents, and extract comments.
    Starting Price: $600 one-time payment
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    Kompare
    Kompare is a free software graphical computer application that helps the user to compare two different text files or two directories. Kompare does not actually compute the differences between the compared files itself, but is merely a graphical front end to the command line interface diff utility. However, the colour coding of changed lines makes them very easy to spot. Comparison of files or directories via a graphical interface. Bezier-based connection widget lets you see both source and destination as they really appear. Graphical viewing of patch files in normal, context, unified and diff formats. Graphical interface to commonly used diff command-line options. Easy navigation of multiple-file diffs with the dockable navigation tree. Ability to view plain-text diff output in the embedded viewer. Interactive application of differences. Provides full network transparency.
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    TextMaker

    TextMaker

    SoftMaker

    DOCX is the default file format of TextMaker 2021. This lets you skip the annoying import and export. You can open documents created with TextMaker in Microsoft Word, and vice-versa, directly, without conversion. With TextMaker 2021, you can also edit DOC and RTF files, as well as create high-quality PDF files. You can now also create archival PDFs in PDF/A format for the long-term preservation of your documents. SoftMaker Office Professional and NX Universal even enable you to create great-looking e-books in EPUB format. Daily correspondence is handled quickly with TextMaker 2021. Practical time-savers such as the built-in address book, automatic marks for folding pages, and attractive document templates make creating letters, mail merges, labels, and envelopes child's play. Create attractive flyers, invitation cards, and posters in no time at all using the sophisticated desktop-publishing functions of TextMaker, such as its unique object mode, intelligent object guides, etc.
    Starting Price: $16.50 per year
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    OpenGL

    OpenGL

    OpenGL

    OpenGL (Open Graphics Library) is a cross-language, cross-platform application programming interface for rendering 2D and 3D vector graphics. The API is typically used to interact with a graphics processing unit, to achieve hardware-accelerated rendering. Silicon Graphics, Inc. (SGI) began developing OpenGL in 1991 and released it on June 30, 1992. It is used for a variety of applications, including computer-aided design (CAD), video games, scientific visualization, virtual reality, and flight simulation. The OpenGL Registry contains specifications of the core API and shading language; specifications of Khronos- and vendor-approved OpenGL extensions; header files corresponding to the specifications; and related documentation including specifications, extensions, and headers for the GLX, WGL, and GLU APIs.
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    PDFKit

    PDFKit

    PDFKit

    PDFKit is a PDF document generation library for Node and the browser that makes creating complex, multi-page, printable documents easy. The API embraces chainability, and includes both low-level functions as well as abstractions for higher-level functionality. The PDFKit API is designed to be simple, so generating complex documents is often as simple as a few function calls. Access privileges (printing, copying, modifying, annotating, form filling, content accessibility, document assembly). Accessibility support (marked content, logical structure, Tagged PDF, PDF/UA). Supports JPEG and PNG files (including indexed PNGs, and PNGs with transparency). In addition to PDFKit, you'll need somewhere to stream the output to. Note that in order to Browserify a project using PDFKit, you need to install the brfs module with npm, which is used to load built-in font data into the package.
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    CAD6studio

    CAD6studio

    Malz++Kassner GmbH

    CAD6studio is the professional 2D/3D CAD program of the CAD6 series with all functions for planning, construction, and visualization. Apart from a 2D drawing area, the program provides 3D spaces to create and edit 3D components. Supported file formats: MKD, DWG, DXF, HP-GL/2, SHP, SVG, STL, WMF, EMF, PNG, JPEG, TIFF, GIF, BMP, TVG, T2G, T3G, T4G, VEK, BLD Contains SMART2D Technology plus many highly effective functions for the comfortable creation of drawing objects, working with curves and surfaces, as well as automatic trimming commands, equidistants, clippings, mappings, multiple lines, archiving of drawings, automatic saving, parts lists creation, etc. Use DirectPDF to create professional, ultra-high-resolution PDF files with Unicode texts, layers, transparencies, hyperlinks, and RGB/CMYK/CIElab colors. On demand, you can directly create PDF/A-1b and PDF/A-2b files. All programs of the CAD6 series are 100% data-compatible.
    Starting Price: 55 EUR per month
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    FPDF

    FPDF

    FPDF

    FPDF is a solution written in PHP that allows you to generate PDF documents directly from PHP, so you can use the PDFlib library. The F of FPDF means free, so you can use it for any purpose and modify it to your liking to satisfy your needs. FPDF does not need any extension for PHP (except Zlib to enable compression and GD for GIF support) and works with PHP5 (≥ 5.1), PHP7 and PHP8. The tutorials will allow you to quickly access FPDF. FPDF generates documents in many other languages apart from the Western European ones, like Central, Cyrillic, Greek and Baltic, if they have TrueType or Type1 sources with the set of appropriate characters. UTF-8 is also available. The speed of generation of a document is less than that of PDFlib. Without the resentment, however, is very reasonable and is adequate for the majority of cases, unless its documents are specifically compiled or extended.
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    Barcode Label Maker

    Barcode Label Maker

    Aulux Technologies

    Barcode Label Maker 7 has included more than 2000 predefined label templates. Choose the appropriate size and layout for your label. Insert line, rectangle, ellipse, polygon, grid, barcodes, text, and graphics by clicking and dragging the mouse simply. Print the professional barcode labels to any compatible printers. The printer could be labeled printer or a normal printer. Forget the hours of learning. Create any size of label with Barcodes, Text, Shapes, Images as easy as ABC. Support importing data from Excel, Access and text file. Connect to database, SQL query builder. Industrial Symbol Libraries, include Symbols such as electrical, hazardous material, packaging, and more. Multi-language interface, Available in English, French, German, Japanese, Spanish, Portuguese, Italian, Korean, and Thai. Putting the QR Code into the poster is a bold and necessary attempt in the use of the QR code. This can not only provide consumers with an understanding of the product.
    Starting Price: $49 one-time payment
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    Fast Image Viewer

    Fast Image Viewer

    TDF Software

    A powerful image viewer built from the ground up with highly optimized code especially adept at viewing large bitonal images (e.g. engineering drawings, well logs, etc). Unlike competing products, FIV does not require importing images to local storage and does not need to create any temporary data on your device. It can access images in your camera roll and all supported cloud storage services and open them directly with no delays. Priced fairly, fully functional and no in-app purchases. PDF support is limited to scanned images such as FAXes, not text or vector graphics. This is useful if you know your PDF file contains scanned images because FIV can view and navigate it much quicker than other PDF viewers. FIV is great at viewing large black & white scanned images. Unique technology allows for incredibly fast decoding and readable scale-to-gray (anti-aliased) views. Navigate between pages/files in milliseconds even on less powerful phones.
    Starting Price: $2.99 one-time payment
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    DiffMerge

    DiffMerge

    Sourcegear

    DiffMerge is an application to visually compare and merge files on Windows, OS X and Linux. Graphically shows the changes between two files. Includes intra-line highlighting and full support for editing. Graphically shows the changes between 3 files. Allows automatic merging (when safe to do so) and full control over editing the resulting file. Performs a side-by-side comparison of 2 folders, showing which files are only present in one file or the other, as well as file pairs which are identical or different. Right-click on any two files in Windows Explorer to diff them immediately. Rulesets and options provide for customized appearance and behavior. Identical feature set on Windows, OS X, and Linux. Graphically shows the changes between two files. Includes intra-line highlighting and full support for editing. DiffMerge is a UNICODE-based application and can import files in a wide range of character encodings.
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    MacTerm

    MacTerm

    MacTerm

    Powerful replacement for macOS Terminal, supporting 24-bit color, standard graphics protocols and iTerm2 image sequences and color schemes. MacTerm is one of the few emulators in the world that allow terminal-based programs to set up to 8 bits per RGB component (for a total of 24 bits), allowing for a large number and large spectrum of colors on the screen. The terminal is capable of preserving incoming text perfectly: whether you copy it to the Clipboard, capture it to a file, print it, or drag and drop, any special characters will be present. You can also use the floating command line window to input any kind of character. (In 4.1.0, there are limits on which Unicode characters can actually be displayed by the terminal; these limitations are being removed in 5.0.) Finally, Unicode is supported for file names, preference collection names, and macros.