We are talking about the encrypted PDF Files.
The only way to unlock PDF content is by entering the right password.
Below, we have shared two best ways to remove passwords from a PDF file.

First, you must fire up the password-protected PDF file on your Google Chrome Web web app.
Enter the password for the file and then open it up on the internet tool itself.
From the File menu of Google Chrome, go to the Print option and select it.

This will be used to print out the file.
you’ve got the option to also use the key combination of Ctrl + P.
3.
You will then be prompted with a dialogue box, select Save as PDF and press the Save button.

Next, check the option that says Save to Google Drive before you press the save button.
Using Online Tools:
Some websites provide online tools to unlock your PDF files, likeSodaPDFandSmallpdf.
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