Okular - Okular is a universal document viewer based developed by KDE.
PdfHighlights - PdfHighlights extracts and exports all your PDF highlights and PDF annotations from all your PDF files into a single report.
Sumatra PDF - Sumatra PDF is a slim PDF/DjVu/EPUB/XPS/CHM/CBR/CBZ/MOBI viewer for Windows.
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.
Foxit Reader - Foxit Reader is a free and light-weight multi-platform PDF document viewer.
DocMadeEasy - Edit and sign PDF. Send files safely and securely using end-to-end encryption with 256-bit AES. PDF document management and conversion.