Improve the PDF reader
Recently I was using the OneDrive application in android, I found some features that would improve the application and of course its usefulness.
1) Add a view for horizontal scrolling in the PDF reader.
2) Add a night mode.
3) Add the option "Jump to page" in the PDF reader.
4) Add the function to put bookmarks on the pages in PDF files.
5) Add arrows (Simbols) for the PDF marks.
6) Add OCR for scanned PDF files to be able to highlight it.
I think the community will appreciate that features.