Portable document format (also known as PDF) is a file format that was developed by Adobe Acrobat in the early 1990s to allow document exchange and for easier display on the Internet. Unfortunately, one of the downsides to this type of file is that it is easy for other users to copy. You can password-protect your files to prevent unknown users from saving your PDF files off the Internet.
- Skill level:
Things you need
- Adobe Acrobat
Run Adobe Acrobat, and open the file you want to protect. Select "File" from the toolbar, and click "Document Properties."
Select the "Security" tab at the top of the window. Click "Security Method" from the drop-down menu, and select "Password Security."
Enter a password into the password box. This menu will show several options for further protection.
Locate the "Permissions" section. Disallow copying text, editing text and printing by checking the appropriate boxes. Click "OK," and save the document.
Tips and warnings
- The instructions may vary between versions of Adobe Acrobat, but the sequences are generally the same.
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