Cant open pdf on S20 in watts app and gmail both despite acrobat for samsung is installed

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hi.

I am unable to open any pdf documents directly in watts app and Gmail.  I can go and open same pdf document in acrobat for samsung app, but not directly from app somehow.

it's very annoying not to view pdf directly in apps and rather have to go to acrobat for samsung app to view pdf.

my phone is Samsung S20fe.

This problem is fairly new but frustrating one,  started only 2 months ago, before that I can open pdf documents. 

I have latest versions of watts app, acrobat , Gmail, Android Software etc. all are updated and no updates are pending.

I tried many hours fixing it, but all of no use.

pls advise fix 

thanks 

sandy

[Bernd Alheit]

What is "watts app"?

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