KeptPDF vs. pdfRest API Toolkit Comparison


KeptPDF	pdfRest API Toolkit Datalogics Inc.	+	+
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		Related Products PDF Guru PDF Guru is an online PDF tool that enables users to convert, edit, merge, and compress PDFs with just a few clicks. Download your document quickly and with ease. Our PDF converter can create PDF files in seconds! We use HTTPS encryption to protect your digital data when you make PDF files on our platform. Redact a PDF, modify text, add new objects, and perform even more actions all in one place. We designed an intuitive interface so that you can use our PDF maker without any hassle. Our PDF maker works online on all platforms, whether it's Windows, Mac OS, Linux, iOS, or Android. If you don’t want others to open, edit, or print your file, you can lock or restrict access to it. 95,969 Ratings Visit Website 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. 111 Ratings Visit Website TheBestPDF Welcome to our cutting-edge SaaS platform for online document editing and conversion. Designed to meet the needs of businesses and entrepreneurs. TheBestPDF delivers top‑tier file management solutions for teams of all sizes. Use our vault to store your documents in any size and format. Select from various plans to optimize your tools and costs. Use our platform on any devices and operating systems. Keep your business data safe with HTTPS encryption, ensuring every file creation is secure. Redact, insert objects, and sign PDFs easily, making document management smooth for your organization. Our PDF converter makes document conversion fast, perfect for busy teams. Set up your company's document workflows easily with our user-friendly editor interface. Striving for long-term partnerships, we ensure 24/7 availability for customer support. We unite creative minds to deliver integrated solutions that cover your business challenges. 39,489 Ratings Visit Website RAD PDF Add a fully functional PDF editor to your ASP.NET website in minutes! Compatible with 99% of desktop & mobile browsers, from Internet Explorer 6 through the latest iOS Safari release, RAD PDF simply works. No plugins or other software needed. RAD PDF natively supports the most commonly used PDF features. Beyond a PDF reader, RAD PDF equips web applications with a browser-based PDF editor & PDF annotator. Features not even available in Adobe Acrobat Reader can be used to provide advanced PDF functionality. By enabling PDF form filling, PDF redaction, & PDF signing directly in the web browser, RAD PDF users can utilize PDF features without worrying about having the right platform or software installed! Allow your app to design new PDF forms, protect content, sign PDFs, & more using an intuitive graphical user interface (GUI). Client (JavaScript) and server APIs allow for endless possibilities .NET Core, Framework, & .NET 5+ supported Try editing any PDF with RAD PDF, FREE! 3 Ratings Visit Website Adobe Acrobat Adobe Acrobat Studio is a leading enterprise document platform built to scale for global teams — delivering AI-powered document intelligence, trusted PDF tools, and on-brand content creation in one secure solution. Core capabilities include PDF creation, editing, conversion, annotation, redaction, e-signatures, and fillable forms. AI Assistant enables conversational document intelligence across PDFs, Word docs, spreadsheets, and more — surfacing summaries, key insights, and source-linked citations for verified, audit-ready answers. PDF Spaces organizes files, collaboration, and context into centralized knowledge hubs. The Generate Presentation feature transforms any document into a polished, branded deck using AI and Adobe Express templates. Enterprise-grade encryption, admin controls, and compliance workflows support secure document sharing and high-volume document processing at scale — across Legal, Finance, HR, Sales, and more. Available on desktop, web, and mobile. 8,334 Ratings Visit Website MobiPDF MobiPDF (formerly PDF Extra) is an intuitive and powerful PDF editor and reader designed for today’s modern user - the cost-efficient alternative to Adobe Acrobat Pro you’ve been looking for. FEATURES OVERVIEW: PDF Viewer and Reader: Switch between page views or use "Read Mode" for distraction-free reading. Create and Edit PDFs: Modify text and images or start with a blank PDF. Convert to Office Formats: Easily turn PDFs into Word, Excel, PowerPoint, and image files. Leverage OCR: Transform scanned documents into searchable PDFs. Organize PDFs: Combine, split, reorder, and compress documents. Markup and Comment: Highlight, annotate, and add bookmarks or stamps. Fill PDFs: Seamlessly fill forms or create ones from scratch. Sign PDFs: Sign your documents anywhere—no ink required! Secure Your Work: Protect files with passwords, digital signatures, and 256-bit encryption. Offline Mode: Full functionality without internet access. Translate PDFs 7,811 Ratings Visit Website Digital WarRoom DWR eDiscovery allows legal professionals to process, analyze, review, and produce documents that are relevant to litigation and other legal disclosure obligations. Our tools allow easy ingestion and analysis of client and opposing party documents using a comprehensive set of document review features including AI search, keyword search, keyword highlighting, metadata filtering, marking documents, privilege log management, redactions, and a range of analysis tools to help users best understand their document corpus. TRAINING IS ALWAYS INCLUDED. All of our features are DIY, meaning the user can perform standard eDiscovery tasks on their own without the need for a consultant to intervene. DWR Pro ($1995-5995) is a software solution that can be downloaded to your local server. Our cloud subscriptions are billed per-GB for hosting with no other hidden fees. The entry-level Single Matter subscription starts at $250/month with fees that range form $10/GB/month to $1/GB/month. 55 Ratings Visit Website MobiOffice MobiOffice (formerly OfficeSuite) is an easy-to-use office suite alternative, featuring MobiDocs, MobiSheets, and MobiSlides. It allows you to handle text documents, spreadsheets, and presentations efficiently. MobiOffice supports all major file formats, including Microsoft Office (DOCX, ODT, PPTX), Google formats (Docs, Sheets, Slides), Apple iWork, and more. Key components: - MobiDocs lets you create and edit documents with a rich set of formatting tools. - MobiSheets helps you manage and analyze data effortlessly, visualize trends, and create reports. - MobiSlides allows you to design stunning presentations with customizable templates and multimedia support. MobiDocs, MobiSheets, and MobiSlides are available as standalone apps on Windows. MobiOffice integrates with MobiDrive, MobiSystems' cloud storage solution, for easy document saving and syncing. Start your free 7-day trial today and experience a complete office suite. 15,505 Ratings Visit Website Apryse PDF SDK Apryse (formerly PDFTron) powers the future of document technology. We help businesses, developers, and enterprises handle documents with unmatched speed, accuracy, and security. Whether running in secure server environments or delivering seamless web-based experiences, Apryse makes document workflows smarter and easier. With Apryse, you can: Embed powerful document features directly into your apps — from viewing and editing to collaboration and compliance. Run at enterprise scale on secure server infrastructure, ensuring reliability without cloud dependencies. Deliver seamless in-browser document experiences with responsive, accessible, and feature-rich web capabilities. Trusted globally, Apryse empowers organizations to simplify operations, enhance productivity, and create exceptional document experiences. 159 Ratings Visit Website Foxit Document Workflow APIs Foxit provides a powerful suite of cloud-native APIs that help organizations automate, secure, and modernize document workflows. Built on scalable REST architecture, Foxit APIs enable developers to generate, convert, extract, sign, and display documents directly within applications—eliminating manual processes and accelerating digital operations. The Foxit PDF Services API supports high-volume PDF automation, including conversion, extraction, optimization, and redaction. The Document Generation API creates dynamic PDFs and DOCX files from templates and real-time business data. The Foxit eSign API embeds legally binding eSignature workflows with full audit trails and compliance support. The PDF Embed API delivers customizable in-app PDF viewing, annotations, and secure access controls. Together, Foxit APIs provide a secure, scalable foundation for end-to-end document automation and digital transformation. 8 Ratings Visit Website
About Most online PDF tools upload your file to a server to do the work. KeptPDF does the work right in your browser: 25 tools including redact, sign, compress, OCR, organize, and compare. Your document is never part of a single request. The proof takes ten seconds: load the page, turn on Airplane Mode, and every tool still works. Free tier with no account. Pro adds bulk actions, personal redaction lists, and exports for $29/mo. The redaction engine auto-detects names, SSNs, phone numbers, addresses, and dates, removes the underlying text instead of drawing a box over it, and prints an audit certificate on every file that anyone can verify. A command line version runs the same engine on your own servers for bulk work: scanning bureaus, litigation support teams, and records departments process thousands of PDFs in one pass.	About pdfRest is a REST API for high-volume PDF processing, built on the Adobe PDF Library. Call it from any language to convert, generate, extract, secure, and prepare PDFs in production pipelines, chaining calls by passing a resource ID between steps. Convert Office, HTML, images, email, and Markdown to PDF, and PDF to Word, Excel, PowerPoint, images, Markdown, PDF/A, PDF/X, and PostScript. Generate PDFs from scratch with text, images, shapes, and attachments, with accessibility tagging. Extract via OCR, text/image extraction, form data, metadata, AI summarization, translation. Secure with signing, encryption, restrictions, watermarking, two-step redaction, and TDM Reserve to opt out of AI training. Handle prepress: color conversion, transparency flattening, page boxes, rasterization. Manage forms: import/export, flatten, XFA-to-AcroForm. Deploy on pdfRest Cloud (US or EU) or self-host via Docker, Kubernetes, or AWS Marketplace (BYOL) — same API, same code, just change the base URL.
Platforms Supported Windows Not Supported Mac Not Supported Linux Not Supported Cloud Supported On-Premises Not Supported iPhone Not Supported iPad Not Supported Android Not Supported Chromebook Not Supported	Platforms Supported Windows Not Supported Mac Not Supported Linux Not Supported Cloud Supported On-Premises Not Supported iPhone Not Supported iPad Not Supported Android Not Supported Chromebook Not Supported
Audience Law firms, accounting practices, clinics, and anyone who shares documents they cannot afford to leak	Audience Developers looking to rapidly integrate high-quality PDF workflows with any business applications
Support Phone Support Not Supported 24/7 Live Support Not Supported Online Supported	Support Phone Support Not Supported 24/7 Live Support Not Supported Online Supported
API Offers API Not Supported	API Offers API Supported
Screenshots and Videos View more images or videos	Screenshots and Videos View more images or videos
Pricing $0 (Pro $29/month) Free Version Supported Free Trial Not Supported	Pricing $0 per month Start with a free trial Guest API Key, no signup required. Then sign up to scale your usage with one of 4 Pricing Plans, including a Free tier. Free Version Supported Free Trial Supported
Reviews/Ratings Overall 0.0 / 5 ease 0.0 / 5 features 0.0 / 5 design 0.0 / 5 support 0.0 / 5 This software hasn't been reviewed yet. Be the first to provide a review: Review this Software	Reviews/Ratings Overall 4.9 / 5 ease 4.8 / 5 features 4.7 / 5 design 4.5 / 5 support 4.7 / 5 Read all reviews
	Pros & Cons from Real Users Pros The team at PDFrest is incredibly helpful — they respond quickly, clearly, and even took individual feature requests into account without delay. The API itself is fast, user-friendly, and well-documented. A solid, reliable partner to work with. pdfRest is surely a business oriented PDF converter because it can convert all sorts of files, small and large, landscape or portrait, into splendid and crisp PDFs for all purposes. It is the best documentation tool in the market for creating, editing and converting office suite documents into PDF. Really liked its simple to use procedures. With pdfRest I am assured that all my word, excel and presentation files can be easily converted to PDF without migrating to other softwares. Really a reliable software with comprehensive features. It is an excellent PDF conversion tool that offers a wide range of features and functionality. The platform provides a user-friendly interface that makes it easy to convert PDF files to various formats such as Word, Excel, and HTML. Additionally, PDFRest offers a robust API that allows users to seamlessly integrate PDF functionalities into their applications. One of the standout features of PDFRest is its conversion speed. The platform can convert large PDF files quickly and accurately, saving users valuable time and effort. Moreover, PDFRest's API is versatile and flexible, providing users with the ability to customize and automate their PDF workflows easily. Cons The team at PDFrest is incredibly helpful — they respond quickly, clearly, and even took individual feature requests into account without delay. The API itself is fast, user-friendly, and well-documented. A solid, reliable partner to work with. Multiple file upload options is missing or I didn't find the option, either ways would appreciate some guidance. I do not have complaints at the moment with regards to execution of the tool or its processes. OCR feature could have been a lovely add. I hope the makers add this feature soon. One area where the platform falls short is in its limited language support. PDFRest currently only supports English, which can be a significant limitation for users.
Training Documentation Supported Webinars Not Supported Live Online Not Supported In Person Not Supported	Training Documentation Supported Webinars Not Supported Live Online Not Supported In Person Not Supported
Company Information KeptPDF Founded: 2026 United States keptpdf.com	Company Information Datalogics Inc. Founded: 1967 United States pdfrest.com
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Categories PDF Supported KeptPDF is a PDF toolkit that runs entirely in your browser. Nothing uploads: redaction, OCR, compression, signing, splitting, merging, and the rest of its 25 tools all run on your own device, so the document never touches a server. The redaction engine auto-detects names, SSNs, phone numbers, addresses, and dates, removes the underlying text instead of covering it, and prints a verifiable audit certificate on every file. A command line version handles thousands of PDFs in one pass for scanning bureaus, litigation support teams, and records departments. The core tools are free with no sign-up.	Categories PDF Supported PDF APIs Supported PDF Compressors Supported PDF Converters Supported PDF Encryption Supported PDF Merge Supported PDF SDK Supported PDF Splitters Supported
PDF Features Annotations Supported Convert to PDF Supported Digital Signature Not Supported Encryption Supported Merge / Append Supported PDF Reader Supported Watermarking Supported	PDF Features Annotations Supported Convert to PDF Supported Digital Signature Supported Encryption Supported Merge / Append Supported PDF Reader Not Supported Watermarking Supported
Integrations GitHub Not Supported Google Drive Supported JavaScript Not Supported Node.js Not Supported PHP Not Supported Postman Not Supported Python Not Supported pdfAssistant.ai Not Supported View All 1 Integration	Integrations GitHub Supported Google Drive Not Supported JavaScript Supported Node.js Supported PHP Supported Postman Supported Python Supported pdfAssistant.ai Supported View All 7 Integrations
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