Xpdf is #13 in Top 10 PDF Readers

https://www.xpdfreader.com/
Xpdf
Xpdf is a free PDF viewer and toolkit, including a text extractor, image converter, HTML converter, and more. Most of the tools are available as open source

Positions in ratings


#13 in Top 10 PDF Readers

Alternatives


The best alternative to Xpdf is MuPDF