Cost / License
- Freemium
- Proprietary
Application types
Platforms
- Online
- Android
- iPhone
- iPad




Okular is described as 'Multi-platform document viewer supporting PDF, EPUB, comics and images with annotation tools, sidebar navigation, signature verification, and text-to-speech' and is a leading PDF Reader in the office & productivity category. There are more than 100 alternatives to Okular for a variety of platforms, including Windows, Mac, Android, Linux and iPhone apps. The best Okular alternative is SumatraPDF, which is both free and Open Source. Other great apps like Okular are Foxit PDF Reader, LibreOffice - Draw, Evince and KOReader.




Xreader is a document viewer capable of displaying multiple and single page document formats like PDF and Postscript.
PrivatePDF is a free web tool that lets you make quick PDF edits from within your web browser, without uploading anything anywhere.




The better PDF experience - Simple and easy online PDF tools
Annotating. converting and editing pdfs in a web application by the developers of xodo.

PDF Connect Suite is a full-featured PDF document system that transforms your Mac into a powerful PDF Office. PDF Connect Suite serves as your one-stop shop for your PDF document needs, as it provides a complete array of functions to help annotate, view, bookmark, share, and...







AI powered productivity tool for reading, understanding and taking notes on PDFs and long websites. Users can search, summarise, extract and define keywords, ask google-search type questions and be taken straight to the answers.




Comprehensive PDF tool for viewing, editing, annotations, and conversion between formats like Word, Excel, or PPT. Features include encryption, redaction, and fast batch processing.




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



Gyan Reader is an eBook Reader that supports epub 3 format and is also backward compatible. It is an advanced epub3 rendering engine for Android platform.







Redact & Annotate images. Hide or mark up essential parts of your image by simply clicking and dragging on it.

