Cannot open the pdf protected in app [Android]

U'm retroactively open my textbooks that are protected pdf files, but the application does not find a way to unlock the file. Help, please.

Hi IT green.

It seems that you have a "protectedpdf" by Vitirum.  (But your screenshot does not show the entire page.)

Please take a look in the next thread forum and my #4 response (which is the correct answer).

How to access the locked documents

Please let us know if you have any additional questions.  Thank you.

Tags: Adobe Document

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