Enforce access and redaction rules by creating standard [templates] with file attachment security policies, configurin…
Open the PDF file you want to restrict in Adobe Acrobat Pro.
Select File from the top menu, then choose Properties.
In the Document Properties window, click the Security tab.
From the Security Method dropdown, select Password Security.
In the Password Security Settings dialog, check the option to restrict editing and printing of the document.
Set a permissions password when prompted.
CautionIf you forget this password, you cannot change or remove the restrictions later.
Choose the specific restrictions you want to apply (e.g., disallow printing, disallow editing, disallow copying).
Click OK to confirm your settings and close the dialog.
Click OK again in the Document Properties window.
Save the PDF to apply the new permissions.
Best practiceTest your restricted PDF in a different PDF reader or with a different user account to confirm the permissions are enforced.
You can review or change these restrictions later by reopening the Document Properties and returning to the Security tab.
This runs in the Acrobat app - there is no separate API for this task.
To remove permissions, open your PDF in Adobe Acrobat, go to the 'Protect' or 'Security' section, and look for an option to remove restrictions or unlock the file. You may need the password if the file is protected.
Permissions restrictions are settings that stop people from doing things like printing, copying, or editing a PDF. These are often set by the person who made the file.
If you can't print or copy text, it's likely because the PDF has permissions restrictions. These are put in place to protect the content, but you can remove them if you have permission.
You should only remove restrictions if you have permission from the person who sent you the PDF, especially if it contains private or copyrighted information.
Removing restrictions lets you do things like print or edit the file, while removing a password means you don't need to enter a code to open the PDF. Sometimes a file has both.