Sioyek is a PDF viewer with minimal interface optimized for reading research papers and technical books.




PdfDing is described as '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' and is a PDF Editor in the office & productivity category. There are more than 50 alternatives to PdfDing for a variety of platforms, including Windows, Android, Mac, iPhone and Linux apps. The best PdfDing alternative is SumatraPDF, which is both free and Open Source. Other great apps like PdfDing are Okular, Zotero, Foxit PDF Reader and Evince.
Sioyek is a PDF viewer with minimal interface optimized for reading research papers and technical books.




Xodo is the ultimate cross-platform PDF viewer and annotator. Powerful, fast, and optimized for all phones and tablets, Xodo makes it easy to access, edit, share, sync, manage, sign, and more.




High-performance viewer for documents and images offering split tabs, customizable single or book layouts, portals for side-by-side sections, instant search, line highlight, annotation tools, link hints, searchable highlights, session management, and TOML config.


PDF viewer for macOS supports scientific papers, annotations, highlights, bookmarks, split view, exporting notes, AppleScript, multiple annotation types, bibliography integration, full-screen, search, and compatibility with various macOS versions.

A document viewer for the GNOME desktop. You can view, search or annotate documents in many different formats.


Simple Android PDF viewer based on pdf.js and content providers. The app doesn't require any permissions.




Document Viewer is a highly customizable document viewer for Android, fork of the last GPL version of EBookDroid .


Create, Convert, Review and Edit PDF Documents on Windows, macOS, and Linux.




Xournal is an application for notetaking, sketching, keeping a journal using a stylus. It is free software (GNU GPL) and runs on Linux (recent distributions), Windows and other GTK+/Gnome platforms.

doPDF allows you to freely convert documents to PDF files. It installs as a printer driver, enabling you to print from any Windows application.




Read, annotate, and highlight PDFs, fill interactive forms with saved input, underline or strike through text, manage bookmarks, sync files from cloud services, and share documents. Compatible with Preview and Adobe Acrobat annotations, supporting extensive iOS features.




Comprehensive solution for editing, signing, form filling, OCR scanning, commenting, converting, and redacting PDFs, with AI-driven analysis and content extraction, data export to spreadsheets, text-to-speech, seamless use across desktop and mobile, and batch processing.



