On Sun, Oct 13, 2019 at 12:43 PM Henning Hraban Ramm <texml@fiee.net> wrote:
Hi, I’d like to update my list of (usable!) PDF viewers.

A recent android tablet 10" with HD display is quite ok with Adobe Reader and  several others apps ( eg foxit pdf reader)
EBookDroid is another app  pdf +djvu reader ,  also quite ok to read a pdf on screen.
 
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luigi