PrivatePDF is a free web tool that lets you make quick PDF edits from within your web browser, without uploading anything anywhere.




Skim is described as 'PDF viewer and annotation tool for macOS supports scientific paper reading, note-taking, highlighting, bookmarks, multiple annotation types, and AppleScript' and is a popular PDF Reader in the office & productivity category. There are more than 50 alternatives to Skim for a variety of platforms, including Windows, Mac, Linux, Android and iPhone apps. The best Skim alternative is SumatraPDF, which is both free and Open Source. Other great apps like Skim are Okular, Foxit PDF Reader, Xournal++ and PDF-XChange Editor.
PrivatePDF is a free web tool that lets you make quick PDF edits from within your web browser, without uploading anything anywhere.




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.




TagNotate is a PDF viewer and annotator with the unique ability to assign tags to annotations - you can create as many different tags as you want, allowing you to associate with each annotation whatever kinds of information are important for you.




Revolutionize PDFs for free! Try PDFPro: advanced editing, annotating, converting, signing. Premium tools, cloud support, secure.



Shelf is a convergent document viewer that supports PDF and EPUB files. With Shelf, you can organize your document collection by creating tags, like other Maui applications.



Xreader is a document viewer capable of displaying multiple and single page document formats like PDF and Postscript.
Redact & Annotate images. Hide or mark up essential parts of your image by simply clicking and dragging on it.


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








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.

FormulatePro helps you open and write on PDF documents. You can fill out any PDF form document, drop in graphics, scribble with the mouse or a tablet, save and print.


