EBookDroid is an open source (GPL'ed) document viewer for Android based on the VuDroid code base.


EBookDroid is an open source (GPL'ed) document viewer for Android based on the VuDroid code base.


InkBox is an open-source, Qt-based eBook reader for Kobo devices. It also comes as an entire native open-source OS and provides support for a number of devices.




Orion is a pdf, djvu, xps and cbz file viewer for Android devices, based on mupdf and DjVuLibre libraries.




Looking for methods to edit, merge,split,convert,rotate,annotate and other related manipulate on PDF? SwifDoo PDF will match your needs and handle most of your PDF-related jobs.




Versatile PDF management software for cross-platform use, allowing text and image editing, page arrangement, and more, with cloud sharing features.




The simplest PDF viewer. Safe (doesn't require permissions), lightweight (just 6,9MB) and modern.

Allows mobile viewing, printing, text search, and copying from PDF files with a simple interface. Designed for Android and quick on-the-go document access.




Yomu is an independent reader for book lovers. Yomu’s design is carefully crafted for ebooks and offers custom styles for better readability and distraction-free reading.




Simple macOS PDF reader with ChatGPT integrated. You can chat with your local PDF. The returned response can cite the page number to ensure correctness.

A local-first, AI-native reading app that turns books, highlights, notes, and conversations into durable context.



Edit, annotate, sign, and convert PDFs with AI tools, OCR in 50+ languages, offline export, password security, and text-to-speech across all major platforms.




TextStack is a reading tool for developers tackling dense technical books like Designing Data-Intensive Applications, ML papers, or distributed systems texts. Tap any unfamiliar term, get a 2-3 sentence LLM-powered explanation that's aware of the book's domain —...



A lightweight multi-platform, fast desktop PDF viewer alternative to Acrobat Reader Tabs, virtualized rendering, stamps, eSignatures, certificate-based signing (PAdES-LT), encrypted PDFs, full-text search, and more.




A free, open-source PDF editor for Windows (Linux and MacOS coming). Merge, reorder, rotate, OCR, redact, sign, add form fields and watermarks — then just save. No account, no paywall.




PDF Viewer Pro is a fast and beautiful app, allowing you to view, search, and annotate PDF documents with ease on your iPhone and iPad.




AskoPDF is a lightweight PDF viewer focused on productivity and workflow. Key features include: Groups, Split View, Tabs, Annotations, TTS and OCR




Comprehensive solutions for displaying, securing, and tracking your PDFs, with the option to transform them into powerful lead magnets.


The basic service that aims to help you work better and faster with PDF files, so you can get on with the important things.


Edit your PDF files quickly and intuitively. Open, edit, save or convert PDF files with PDFTool – it’s up to you.



Speak4Me converts any text file, including PDFs and websites, into audible content, enabling you to listen to your documents or school materials anytime, anywhere.






Xpdf is a free PDF viewer and toolkit, including a text extractor, image converter, HTML converter, and more. Most of the tools are available as open source.

Documents is a document viewer and media player for your iPhone and iPad. Read books, watch video and listen to music directly on your device.




Open-source web-based tool for editing, converting, merging, splitting, and compressing PDFs with all client-side processing, no ads, limits, or registration.




Transform your research experience with Listening, the world's first app that turns academic papers into high-quality audio content. Trusted by over 50,000 students and researchers, Listening helps you save time by letting you listen to papers anywhere, in your spare time.



