[PF4Mobile]

Reading PDFs:

Page Orientation:
-in portrait mode you need to cut the margins of the page. Some documents are OK but is all depends on the font size and line height and on the space between lines. Highly dense text blocks are difficult to read in this mode
-in landscape mode you are OK

Document layout
here you can choose between "1 page" and "Scroll mode"
I prefer the second mode and I use the right side button to advance on page.

Browsing the document:
Sometimes confusing, it all depends on the layout and page orientation.
I am still trying to understand how the reader decides to use the buttons for browsing because sometimes it seems to jump one page ahead no matter if you press the OK (right side button) or the Back and Forward buttons (arrow buttons on the left side)

Trying to use the stylus to move the document (panning) conflicts with the annotation mode (you can not have both). See the bugs section for a solution to this problem.

Refresh: allways on otherwise the screen gets greyish and ghosting after ghosting artifacts take over the page

Exporting annotations

Here the PDF reader has a problem: when you start annotating you have to decide if you want to keep your notes is a separate file or in the PDF file that you read.
Highlighted text can be exported via the annotation menu but it is not merged in the PDF file.
On the other hand you have scribbles that you can use to mark the text and you can merge the scribbles into the PDF file and you will see them on desktop

So depending on your purpose you have to choose one or the other.