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.
When you set 'Printing Allowed: None', no one can print the PDF at all. Choosing 'Low (150 dpi)' means people can print, but only at a low quality. This is useful if you want to allow basic printing for review but prevent high-quality copies that could be misused. 'High' quality allows full-resolution printing.
Adobe Acrobat requires an owner password to ensure that only the document owner or authorized persons can change the security settings. This password protects your chosen restrictions from being removed by others. Without it, anyone could easily change the rules you set for printing, editing, or copying.
When you restrict editing on a PDF, the 'Changes Allowed' setting governs what users can do. If you want users to fill out form fields, you must specifically allow 'Form fill' when setting the restrictions. If 'Form fill' is not allowed, users will not be able to type into form fields, even though other editing is blocked.
When you use 'Restrict Permissions', you can stop people from copying text or images from your PDF. This is part of the overall protection settings. By setting an owner password and choosing to restrict copying, you prevent unauthorized use of your content, making it harder for others to take parts of your document.