I wonder why everything now is written in web frameworks. Meanwhile I am currently using macos which has a magnificent PDF tool called... Preview. It allows annotate, merge, realign pages, insert one page from another document or even a JPEG-scan, etc.
However, before the courtesy of my company giving me a macos-enabled gear - I had to cope with PDFs using multiple apps on Windows and Linux. Recently I got there again and found out that PDF support is really weak in Linux, and the formerly award winning Acrobat Reader now looks slow and poor, trying to steal my data and occupy as much space as possible. Also Acrobat Reader reference browser for linux is killed now.
Hence, the question. If everyone is using PDF, why there are no good, fast native tools? and... why are we even staying with PDF?