How to remove PDF files password
To Remove PDF Password you can use PDF Unlocker tool. A few days back I was also searching for the tool that can unlock and remove PDF restrictions. However, after a lot of searches, I came across this utility. It really helps me to remove restrictions from PDF documents and enable all PDF permissions.
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Open the PDF file in Adobe Acrobat Pro and provide its password to view it. Click the lock icon at the left side of the window and click “Permission Details”. You can also click File > Properties and click the “Security” tab. Click the “Security Method” box, select “No Security”, and click “OK” to remove the password.