Sioyek is a PDF viewer with a focus on textbooks and research papers

#PDF Tools #PDF Editor #iPhone 19 social mentions

2

Heptabase

#Note Taking #Personal Notes #Knowledge Management 2 social mentions

3

PDF Expert

I work a lot with academic papers on iPad and PDF expert is the best! https://pdfexpert.com/.

#PDF Tools #PDF Editor #PDF Creator 25 social mentions

4

Hypothes.is

Hypothesis https://web.hypothes.is/ is pretty good at keeping notes on PDF. Normally it anchors the annotations for any url but I believe that for PDF is also doing some extra checksum magic to uniquely identify the PDF and apply the annotations. Furthermore you can have collaboration features such as group annotations. Useful for classes or science labs...

#Bookmark Manager #Bookmarks #Research Tools 46 social mentions