Prepare a secured PDF copy of the [dataset=stability study dataset] for regulatory submission, encrypt it with a passw…
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 restrict PDF permissions, 'Changes Allowed' controls specific actions. It lets you decide if users can insert, delete, or rotate pages. It also covers if they can fill in forms or extract pages from your document. Setting this carefully protects your content from unwanted changes.
Yes, if you only restrict printing and editing, users might still be able to copy text. To prevent copying, you usually need to select an option that specifically restricts content copying. Always check all restriction settings to make sure your document is protected as you intend.
An owner password is needed to remove PDF protection because it acts as the master key. It ensures that only the person who set the restrictions, or someone they trust, can undo them. This security measure prevents unauthorized changes to your document's access controls.
| Feature | What it restricts |
|---|---|
| Restrict printing, editing, copying | Controls printing, changes (insert, delete, rotate pages, form fill, extract), and copying of content. |
| Restrict PDF editing | Mainly focuses on preventing changes to the document's content and structure. |