Currently, I’m just using the default ‘Drive PDF Viewer’ on my Android devices, would love to switch to something FOSS and non-google. Any good recommendations?
If it’s available on F-Droid, that would be preferable.
MuPDF mini or Sav PDF viewer
MuPDF Viewer works fine for me. Not very feature rich tho.
I am using Librera Reader. Make sure to install the F-Droid version (Librera FD) without Google Play services.
It is primarily an ebook reader that supports a variety of formats, but it is also an excellent PDF viewer. Significantly more feature-rich than any other FOSS PDF viewer for Android that I have found.
KOreader is great, but use muPDF if you don’t want to learn
https://apt.izzysoft.de/fdroid/index/apk/com.gitlab.mudlej.mjpdfreader
Supports dark mode too
I use MuPDF but there is also the GrapheneOS PDF viewer available on their GitHub
https://github.com/GrapheneOS/PdfViewer
You can install it using Obtainium or jus grab it from the GitHub page.
Mupdf or fossify file manager has a pdf reader built in
MuPDF comes by default on CalyxOS, and is what I use.
Firefox Mobile can open PDFs fine - https://lemmy.blahaj.zone/pictrs/image/1c51814a-c761-4325-baa1-346e8ae2e7fb.png
