Showing 103 open source projects for "java open source"

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    Context for your AI agents

    Crawl websites, sync to vector databases, and power RAG applications. Pre-built integrations for LLM pipelines and AI assistants.

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  • 1
    PDFsam

    PDFsam

    PDFsam, a desktop application to split, merge, mix, rotate PDF files

    PDFsam Basic is our free and open-source desktop application to split, merge, extract pages, rotate and mix PDF files. PDFsam Visual is a powerful tool to visually compose PDF files, reorder pages, delete pages, split, merge, rotate, encrypt, decrypt, extract text, convert to grayscale, crop PDF files. PDFsam Basic is written using JavaFX. Since version 4 it is released as a self-contained application and bundles a jlinked JDK while version 3 requires a Java Runtime Environment 8 with JavaFx installed in order to run.
    Downloads: 132 This Week
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  • 2
    Stirling-PDF

    Stirling-PDF

    Web application that allows you to perform operations on PDF files

    Stirling PDF is a powerful, locally hosted web-based PDF manipulation tool offering a wide range of editing, conversion, and utility features. It allows users to merge, split, compress, convert, OCR, and perform other operations on PDF files directly from a browser without uploading data to third-party servers. The tool is privacy-conscious, self-hostable via Docker, and built with modularity in mind to allow future expansion and integration.
    Downloads: 19 This Week
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  • 3
    PDF Arranger

    PDF Arranger

    Small python-gtk application, to merge or split PDFs

    PDF Arranger is a small python-gtk application, which helps the user to merge or split PDF documents and rotate, crop and rearrange their pages using an interactive and intuitive graphical interface. It is a front end for pikepdf. PDF Arranger is a fork of Konstantinos Poulios’s PDF Shuffler (see Savannah or Sourceforge). It’s a humble attempt to make the project a bit more active.
    Downloads: 386 This Week
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  • 4
    PDF.js

    PDF.js

    A PDF Reader in JavaScript

    PDF.js is a web standards-based platform for parsing and rendering Portable Document Formats (PDFs). Open source and built with HTML5, this PDF viewer is supported by a great community and Mozilla Labs. PDF.js can be used on both modern and older browsers, and is built into version 19+ of Firefox.
    Downloads: 86 This Week
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  • Reach Your Audience with Rise Vision, the #1 Cloud Digital Signage Software Solution Icon
    Reach Your Audience with Rise Vision, the #1 Cloud Digital Signage Software Solution

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  • 5
    PDF4QT

    PDF4QT

    Open source PDF editor

    PDF4QT is open source PDF editor based on Qt framework. It contains a C++ library, applications for viewing/editing PDF documents, and a command line tool. PDF4QT is an open-source PDF editor for Windows/Linux. It is a modern solution for viewing/editing/rendering PDF documents, for users and developers alike. For developers, there is a C++ library and a command line tool for use in scripts.
    Downloads: 70 This Week
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  • 6
    TeXworks

    TeXworks

    A simple interface for working with TeX documents

    TeXworks is a free and simple working environment for authoring TeX (LaTeX, ConTeXt and XeTeX) documents. Inspired by Dick Koch's award-winning TeXShop program for Mac OS X, it makes entry into the TeX world easier for those using desktop operating systems other than OS X. It provides an integrated, easy-to-use environment for users on other platforms particularly GNU/Linux and Windows and features a clean, simple interface accessible to casual and non-technical users.
    Downloads: 84 This Week
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  • 7
    AviTab

    AviTab

    X-Plane plugin that displays a tablet to aid VR usage

    AviTab is a plugin for the X-Plane flight simulator. It displays a tablet-like computer with a few apps in the cockpit. It is mainly used for flying in virtual reality. When flying in a simulator, one often needs to look up details in PDF charts, plane manuals, checklists or other documents. Using a PDF reader breaks the immersion because the virtual aviator either has to take off of their HMD or use other tools that can move windows into VR. AviTab tries to solve this problem by offering a...
    Downloads: 75 This Week
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  • 8
    PDF Editor

    PDF Editor

    Offline PDF editor. Add images, signatures, text to PDF in the browser

    Offline PDF editor. Add images, signatures, text to PDF in your browser.
    Downloads: 21 This Week
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  • 9
    PDFPatcher

    PDFPatcher

    A versatile toolkit for PDF manipulation

    PDFPatcher (aka “PDF补丁丁”) is a versatile toolkit for PDF manipulation—editing document metadata, bookmarks, page layout, content restrictions, rotation, compression, merging/splitting, image extraction, and more, all within an intuitive interface. Merge/split PDFs or images, preserve or add bookmarks, and set page dimensions. Batch style/color/target changes, regex/XPath search/replace, mid‑page positioning. Modify PDF metadata, page numbers, links, initial view mode, and remove open actions.
    Downloads: 18 This Week
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  • eProcurement Software Icon
    eProcurement Software

    Enterprises and companies seeking a solution to manage all their procurement operations and processes

    eBuyerAssist by Eyvo is a cloud-based procurement solution designed for businesses of all sizes and industries. Fully modular and scalable, it streamlines the entire procurement lifecycle—from requisition to fulfillment. The platform includes powerful tools for strategic sourcing, supplier management, warehouse operations, and contract oversight. Additional modules cover purchase orders, approval workflows, inventory and asset management, customer orders, budget control, cost accounting, invoice matching, vendor credit checks, and risk analysis. eBuyerAssist centralizes all procurement functions into a single, easy-to-use system—improving visibility, control, and efficiency across your organization. Whether you're aiming to reduce costs, enhance compliance, or align procurement with broader business goals, eBuyerAssist helps you get there faster, smarter, and with measurable results.
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  • 10
    QuestPDF

    QuestPDF

    A library that can help you with generating PDF documents

    Quickly design and generate PDF documents with an open-source, modern, and battle-tested C# library. Forget about limitations, feel confident, enjoy your task and efficiently deliver professional products. QuestPDF is a progressive library that can help you with generating PDF documents in your .NET application by offering a friendly, discoverable and predictable C# fluent API. Do you believe that creating a complete invoice document can take less than 200 lines of code? ...
    Downloads: 3 This Week
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  • 11
    Asciidoctor PDF

    Asciidoctor PDF

    Asciidoctor PDF: A native PDF converter for AsciiDoc

    A fast text processor & publishing toolchain for converting AsciiDoc to HTML5, DocBook & more. Asciidoctor is a fast, open source, Ruby-based text processor for parsing AsciiDoc® into a document model and converting it to output formats such as HTML 5, DocBook 5, manual pages, PDF, EPUB 3, and other formats. Asciidoctor also has an ecosystem of extensions, converters, build plugins, and tools to help you author and publish content written in AsciiDoc.
    Downloads: 2 This Week
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  • 12
    borb

    borb

    borb is a library for reading, creating and manipulating PDF files

    borb is a library for creating and manipulating PDF files in python. borb is a pure python library to read, write, and manipulate PDF documents. It represents a PDF document as a JSON-like data structure of nested lists, dictionaries and primitives (numbers, string, booleans, etc) This is currently a one-man project, so the focus will always be to support those use-cases that are more common in favor of those that are rare.
    Downloads: 2 This Week
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  • 13
    Vanilla.PDF

    Vanilla.PDF

    Cross-platform SDK for creating and modifying PDF documents

    Vanilla.PDF is a modern, high-performance, open-source C++17 SDK designed for creating, editing, signing, and analyzing PDF documents across multiple platforms. It requires no external runtime dependencies, making it lightweight and ideal for embedding into desktop applications, servers, or automation pipelines. The SDK offers full cross-platform support including Windows, Linux, macOS, and Android, with builds available for major compilers and architectures.
    Downloads: 2 This Week
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  • 14
    Markdown to PDF

    Markdown to PDF

    Hackable CLI tool for converting Markdown files to PDF using Node.js

    A simple and hackable CLI tool for converting markdown to pdf. It uses Marked to convert markdown to HTML and Puppeteer (headless Chromium) to further convert the HTML to PDF. It also uses highlight.js for code highlighting. The whole source code of this tool is only ~250 lines of JS ~500 lines of Typescript and ~100 lines of CSS, so it is easy to clone and customize.
    Downloads: 1 This Week
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  • 15
    iLovePDF Api

    iLovePDF Api

    iLovePDF Rest Api - PHP Library

    Develop and automate PDF processing tasks like Compress PDF, merging PDF, Split PDF, converting Office to PDF, PDF to JPG, Images to PDF, adding Page Numbers, Rotate PDF, Unlocking PDF, stamping a Watermark, and Repair PDF. Each one with several settings to get your desired results. Strong infrastructure to offer the best-dedicated processing power. You might know us from ilovepdf.com where we process millions of PDFs daily. We offer a simple and concise API Reference and Guide as well as...
    Downloads: 2 This Week
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  • 16
    InvoicePrinter

    InvoicePrinter

    Super simple PDF invoicing

    Super simple PDF invoicing. InvoicePrinter is a server, command line program and pure Ruby library to generate PDF invoices in no time. You can use Ruby or JSON as the invoice representation to build the final PDF.
    Downloads: 1 This Week
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  • 17
    PDF Split and Merge

    PDF Split and Merge

    Split and merge PDF files on any platform

    Split and merge PDF files with PDFsam, an easy-to-use desktop tool with graphical, command line and web interface.
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    Downloads: 252 This Week
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  • 18
    Stirling-PDF

    Stirling-PDF

    #1 Locally hosted web application that allows you to work on PDFs

    This is a robust, locally hosted web-based PDF manipulation tool using Docker. It enables you to carry out various operations on PDF files, including splitting, merging, converting, reorganizing, adding images, rotating, compressing, and more. This locally hosted web application has evolved to encompass a comprehensive set of features, addressing all your PDF requirements. Stirling PDF does not initiate any outbound calls for record-keeping or tracking purposes. All files and PDFs...
    Downloads: 118 This Week
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  • 19
    converseen

    converseen

    A batch image converter and resizer

    Converseen is a free cross-platform batch image processor for Windows, Linux, macOS, FreeBSD, and other operating systems. It allows you to convert, resize, rotate, and flip an infinite number of images with a single mouse click. Moreover, Converseen can convert an entire PDF document into a set of images with your preferred characteristics. You can choose from over 100+ formats, set the size, resolution, and the filename. Thanks to ImageMagick, the powerful image manipulation library,...
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    Downloads: 819 This Week
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  • 20
    pdfcook

    pdfcook

    Prepress preparing tool and PDF editor

    Preprinting preparation tool for PDF ebooks. On windows create a folder build/ beside src/ directory. PDF v1.7 support. Decrypt encrypted PDFs. Join or Split PDFs. Scale to any paper size, with specified margin. Write Page numbers. Write text and transform pages (rotate, flip, move). Booklet format arrange. 2 or 4 pages per page (2-up, 4-up). More readable output syntax for easy debugging.
    Downloads: 1 This Week
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  • 21
    CROWZ

    CROWZ

    Devuan GNU+Linux 5.0.1 Daedalus based distribution (systemd-free)

    Welcome to CROWZ, formerly Zephyr! Featuring 64-bit Devuan base isos. / Calamares Installer CROWZ is an operating system based on Devuan 5.0.1 Daedalus release. Consisting of a minimal compilation of applications and tools. Overall the ethos of CROWZ is simplicity. Web browser, file manager, image viewer, torrent client, terminal emulator, pdf viewer, audio and video player, text editor, and a few other essential applications. The crowz-welcome screen compliments the install...
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    Downloads: 443 This Week
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  • 22
    PdfBooklet
    PdfBooklet is a Python Gtk application which allows to make books or booklets from existing pdf files. It can also adjust margins, rotate, scale, merge files or extract pages.
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    Downloads: 194 This Week
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  • 23
    eMark

    eMark

    Free and open-source PDF signing and verification application.

    eMark is a free and open-source PDF signing and verification application – a powerful Adobe Reader alternative that enables you to securely sign, verify, timestamp, and protect PDF documents using: 🔑 USB tokens and HSM (PKCS#11) 📜 PKCS#12/PFX certificates 💻 Windows certificate store Works seamlessly on Windows, Linux, and macOS with an Adobe Reader-like interface featuring professional signature verification capabilities.
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    Downloads: 0 This Week
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  • 24
    Hypernomicon

    Hypernomicon

    Hypertext-infused philosophy personal database software

    Hypernomicon is a personal productivity/database application for researchers that combines structured note-taking, mind-mapping, management of files (e.g., PDFs) and folders, and reference management into an integrated environment that organizes all of the above into semantic networks or hierarchies in terms of debates, positions, arguments, labels, terminology/concepts, and user-defined keywords by means of database relations and automatically generated hyperlinks (hence ‘Hyper’ in the...
    Downloads: 4 This Week
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  • 25

    toPDF

    Online service for PDF conversion (to PDF)

    ...It offers a REST service and a simple upload service for synchronous conversion. This library/application doesn't contain conversion libraries because it's a wrapper for existing tools. toPDF currently supports the open source tool PDF Creator (http://www.pdfforge.org) and the commercial solution, easy PDF, from BCL (http://www.pdfonline.com/easypdf/sdk/).
    Downloads: 0 This Week
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