Couldn't share via link

Hi @Samana27707063h61i,

Hope you are doing well. Sorry for your experience with Acrobat Reader Mobile.

Do you experience the issue with a particular PDF file or with all files in general? If with a specific file, would you mind sharing the file with us to reproduce the issue at our end and investigate further?

Also, have you checked if the files are allowed for commenting before sharing? There could be cases where the authors or the creators of a PDF can restrict files to only viewing and not editing.

You might also want to create a new PDF using the application and check if you can share that file for commenting. 

You can try sharing the file using the online portal as well if it works for you: https://acrobat.adobe.com/link/home/

Hope this helps.

-Souvik.