Multi-platform, fast and packed with features, Okular allows you to read PDF documents, comics and EPub books, browse images, visualize Markdown documents, and much more.
Foxit Reader is a free and light-weight multi-platform PDF document viewer. Its core function is compatible with PDF Standard 1.7.
The installer tries to install McAfee WebAdvisor and PhantomPDF Business. These can be skipped by clicking Decline on each.
Foxit Reader vs PDF Expert opinions
the free version does not allow editing like PDF Expert, whereas other products that allow editing are available for Windows only and do not support Mac.
Doesn't allow highlighting and annotating, just allows signature, etc.
Xournal++ (a fork of Xournal) is a handwriting Notetaking software with PDF annotation support. Written in C++ with plattform independent GTK, supporting Linux, e.g. Ubuntu, Debian, Arch, Suse, macOS and Windows 10. Supports Pen input like Wacom Tablets.
Evince (or GNOME Document Viewer) is a document viewer for multiple document formats: PDF, Postscript, djvu, tiff, dvi, XPS, SyncTex support with gedit, comics books (cbr,cbz,cb7 and cbt) and others. See Supported Document Formats for details.
Evince vs PDF Expert opinions
You can't edit or create pdf documents.
Small python-gtk application, which helps the user to merge or split pdf documents and rotate, crop and rearrange their pages using an interactive and intuitive graphical interface.
Master PDF Editor is complete solution for editing PDF and XPS files. You can insert, edit, remove, copy, add images or graphics. Export, import, remove and change page layouts. Also Master PDF Editor provides full functionality for changing PDF information, including author...
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.
It hasn't been updated since 2017, but there is an active fork Xournal++
Sejda helps with your PDF tasks: edit existing text, split, merge, extract, compress, export to other formats and more.
qpdfview is a Qt-based tabbed document viewer using the Poppler library for PDF rendering and CUPS for printing. Support for the DjVu and PostScript formats can be added via plugins.