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


PDF Viewer Pro by PSPDFKit is described as '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' and is a PDF Reader in the office & productivity category. There are more than 50 alternatives to PDF Viewer Pro by PSPDFKit for a variety of platforms, including Windows, Mac, Linux, Android and iPhone apps. The best PDF Viewer Pro by PSPDFKit alternative is SumatraPDF, which is both free and Open Source. Other great apps like PDF Viewer Pro by PSPDFKit are Okular, Foxit PDF Reader, Evince and PDF-XChange Editor.
EBookDroid is an open source (GPL'ed) document viewer for Android based on the VuDroid code base.


A simple PDF document viewer, in the lines of Evince but without using the Gnome libraries. ePDFView is a free lightweight PDF document viewer using Poppler and GTK+ libraries.

Cloud PDF toolkit provides over 20 tools for editing, conversion, OCR, merge, split, annotation, batch processing, and signatures, with free online access, cross-platform usability, no watermarks, no size limits, and options for mobile and desktop integration.




Read, edit, annotate, and sign PDF documents with built-in AI features like summarize and translate, OCR in 50+ languages, fill forms, export to major formats offline, apply watermarks, compress files, secure with passwords, and use text-to-speech on all major platforms.




PDFChef enhances document management with cross-platform support on PC, Mac, iOS, and browsers. It offers text-editing, page rearranging, conversion tools, and cloud-based sharing. Supporting various file formats, it also enables users to add signatures directly to PDFs for swift document finalization.




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.

PdfDing is a browser based PDF manager, viewer and editor that you can host yourself. It offers a seamless user experience on multiple devices. It's designed be to be minimal, fast, and easy to set up using Docker.

PDF X is a productive PDF reader & editor for Windows. It's powerful for users to view, print, edit, and annotate Adobe Acrobat PDFs.




Cloud-based PDF viewer and annotation tool for your browser. Perfect for Chromebook 1:1 schools. View, export, print and share your PDF files straight from your browser. Kami works on all browsers and works best with Google Chrome.
Xreader is a document viewer capable of displaying multiple and single page document formats like PDF and Postscript.
Blazing fast PDF and portable eReader built on muPDF. Including the ability to save "highlights" and notes like on Kindle.




Bookworm is a document reader that allows you to read more than 15 document formats including PDF, EPUB, and MOBI using a versatile, yet simple, and highly accessible interface.
