Based on our record, Okular seems to be more popular. It has been mentiond 10 times since March 2021. We are tracking product recommendations and mentions on Reddit, HackerNews and some other platforms. They can help you identify which product is more popular and what people think of it.
I have recently become quite a fan of Okular. It's well worth checking out. - Source: Reddit / about 1 month ago
Checking out the website, there seems to be an 'Advanced User Interface' which I'm not getting in the version I installed. - Source: Reddit / about 2 months ago
Yes, exactly, visual things drawn on top of the PDF. I mean things like Okular has: highlighting text (like with a yellow highlighter on paper books), freeform draw tool (like scribbling with a pen), adding short text comments and longer notes, etc. To illustrate, the annotations in an old Okular version looked like this: https://docs.kde.org/stable5/en/okular/okular/annotations.html (the yellow note box, the... - Source: Hacker News / 2 months ago
It seems most of your questions have been answered here except for your specific question about pdf files. pdf files are viewable in linux via a number of tools. I actually prefer something like okular over Adobe Acrobat any day of the week. - Source: Reddit / 3 months ago
Sumatra PDF - Sumatra PDF is a slim PDF/DjVu/EPUB/XPS/CHM/CBR/CBZ/MOBI viewer for Windows.
Foxit Reader - Foxit Reader is a free and light-weight multi-platform PDF document viewer.
MuPDF - MuPDF is a lightweight PDF and XPS viewer.
Xodo - Xodo is the ultimate cross-platform PDF viewer and annotator. And it’s 100% free.
calibre - Ebook manager, viewer & converter
Adobe Acrobat DC - Make your job easier with Adobe Acrobat DC, the trusted PDF creator. Use Acrobat to convert, edit and sign PDF files at your desk or on the go.