Hi Juanito,
As Meo has correctly decided she already has firefox so use it for read pdf......this is for your info only
I saw your make error on arm8 for flaxpdf and I got a make error (on arm7) similar to arch error just below yours.
I then looked at a few readers and had never heard of apvlv so built it crudely with some new deps and it looks ok
The name in the image of my sample.pdf might mislead....that name is not available for Linux
https://imgur.com/ReCmBwHThe trouble is the size due to a dep of webkitgtk4. I managed to get libpoppler23 to be its dep but webkitgtk4 is a bit of a monster....Checking Apps total for ghostscript vs webkitgtk4.....I am reluctant to build it properly and submit. Its way too big even for me.
trivia
#####
There is an error in the screenshot with apvlv. The left pane I think is supposed to show page 1 and page 2 etc but webkitgtk4 has a dep of libpoppler and I am not sure if I have built it correct enough for pages to show there.
Another reason not to submit