Notetaking and blackboard replacement application. Inspired by Xournal. Written in C++/Qt for Linux / Windows. It has the ability to annotate PDF files and has a few other options (e.g. markdown support).
doXiview is a free online ocr web site. Besides pure ocr, it is also possible to do image manipulation and pdf convertion.
Cost / License
- Free
- Proprietary
Platforms
- Online
Read Right is a free, lightweight PDF viewer for small portables. Documents are automatically rotated and scaled to fullscreen, so they can be read with the laptop held sideways like a book.
View and add comments to Adobe PDF files and fill interactive forms on any Android phone or tablet.
Cost / License
- Paid
- Proprietary
Application type
Alerts
- Discontinued
Platforms
- Android
- Android Tablet



Utilize pdf-notes to manage all the pdf files on your iPhone and iPad. Fast display, quick page-turning even a thousand pages, useful finger-writing and email your notes to your friends.


+2
The easy-to-use all-in-one PDF software that gives you the power to Read, Create, Edit, Secure, Convert and Print PDF files.
We know how hard it is to get PDF rendering done right on the iOS platform. The small memory and slow CPU conditions make it very hard to achieve blazing fast PDF rendering. You can now rely on PDFTouch SDK for rendering PDF pages in your apps and save months of development...



Innovative open source JavaFX PDF Viewer that combines the power of JavaFX with IDRsolutions industry leading PDF library to deliver a complete cross-platform PDF Reader/Viewer.

Free 4.6 MB PDF viewer for Windows and macOS that just opens. Tabs, search, page editing, dark mode, annotations, signatures. Zero network calls.


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A web-based, all-in-one PDF editor that lets users upload, edit, annotate, sign, merge, split, and convert PDF and other file formats (DOC, DOCX, JPG, PNG), all in a secure, browser-based interface.

BooxReader is a free PDF reader, EPUB reader and ebook reader for Android. Read books, textbooks, study notes, documents, comics and manga from local files without ads, without login and without an internet connection.


+5
The framework is completely customizable with a full featured set of API and flexible classes. RadaeePDF Master SDK allows you to read, annotate, manipulate, do text searches and extractions, and much more besides.
Cost / License
- Paid
- Proprietary
Platforms
- Windows
- Linux
- Android
- iPhone
- iPad
- Software as a Service (SaaS)
- Self-Hosted
- Android Tablet
- Docker
LoudReader is a fully on-device audiobook reader for Mac and iPhone. It turns any EPUB, PDF, or Project Gutenberg classic into an audiobook with natural offline voices and word-by-word highlighting. Everything runs on your device: no account, no cloud, your library never leaves...


BookPod is an AI powered text to speech app that helps you scan books, PDFs, and any texts into audiobooks and read aloud to you.


+6
AI-native EPUB and PDF reader. Select any passage and get contextual AI actions — summarize, explain, visualize, translate — without leaving the reading page.





Files.co PDF Suite for your desktop. 15 PDF tools as a native app, with its own viewer, tabs and annotations. Every operation runs on your computer — no uploads, no accounts, no internet required.


+2
PDFSummarizer.ai is designed to make your job easier. Upload your PDF documents and let our AI-powered tool extract key insights and condense them into concise summaries. Whether you're at your desk or on the go, our platform ensures seamless access to your summarized...

Sutra is an iOS ebook reader built specifically to interface with self-hosted digital libraries via the OPDS protocol. It serves as a dedicated mobile frontend for home server applications like Kavita, Calibre, and Calibre-Web, allowing users to browse, download, and read their...


+1
Tomeu is an interactive e-reader app designed to turn Mandarin Chinese reading into an active study workflow without forcing you to switch between separate reader, dictionary, and flashcard apps.
Cost / License
- Freemium
- Proprietary
Application types
Platforms
- Android


+5
PDF Multitool Utility – Convert PDF to Text, Extract Data from PDF as CSV, XML, Text or XLS Format, Convert PDF to HTML, Convert PDF to TIFF, PDF to PNG, PDF to BMP Images and More.


+7
Discover Feather PDF, the ultimate PDF editor that prioritizes your privacy. Enjoy powerful editing features without data collection and gain lifetime access with a one-time payment.
Cost / License
- Paid
- Proprietary
Application types
Platforms
- Online
- Software as a Service (SaaS)

This is the well-known SDK for Android, iOS and Windows UWP. The SDK is based on the fast, reliable and numerous core library features completely written in C++. It supports Java, Objective-C, C#, Swift and Cordova languages.
Cost / License
- Paid
- Proprietary
Application type
Platforms
- Windows
- Android
- iPhone
- Android Tablet
- iPad
Secure mobile scanning with fast, high-quality local document digitization, smart crop, multiple filters, draw-to-clean tools, and complete offline privacy ensured.


+2
Auto-PDF was designed to automate PDF generation by integrating easily with existing platforms. Simply upload a PDF template and use Saleforce, Quickbase, Zapier, or your own custom tool to send data to Auto-PDF servers.




































































