How to Unlock a Secure PDF File. There are two types of secure PDFs: user-locked, which means you need a password to view the contents, and owner-locked, which means you need a password to copy, print, or otherwise modify the PDF’s contents. While unlocking a user-locked PDF without the password is impossible without purchasing software, you can unlock 2017 dropbox virus dropbox document1.pdf owner-locked PDF in a few ways. If you aren’t already logged into your Google account, you’ll need to do so now with your Gmail address and password.
Click and drag your PDF into Google Drive. This will open the “Print” screen. If the PDF is user-locked, you’ll need to enter the password and then use the Print shortcut again. This option should be beneath the “Destination” heading on the left side of your screen. This option is under the “Local Options” heading in the “Select a Destination” window. It’s in the top left corner of this screen.
Doing so should download the PDF to your computer as an unsecure file. You may have to select a save location before your file properly downloads. This is in the top left corner of the screen. Look at the “Security Method” line. It should say “No Security”, thereby proving that your PDF is no longer locked. This is at the top of the Properties window. Open the Adobe Acrobat program.