Okular - Okular is a universal document viewer based developed by KDE.
Kofax Power PDF - Until now, you’ve been forced to compromise when it comes to PDF software.
Sumatra PDF - Sumatra PDF is a slim PDF/DjVu/EPUB/XPS/CHM/CBR/CBZ/MOBI viewer for Windows.
genei.io - AI-generated summaries for any article or research paper.
Foxit Reader - Foxit Reader is a free and light-weight multi-platform PDF document viewer.
PDF Reader Pro - PDF Reader Pro is an all-in-one PDF office supporting to Read, Annotate, Edit, OCR, Convert, Create & Fill Form, Sign PDFs, TTS on Mac, iOS, Android, and Windows.