Lock the promotion artwork: apply password protection to the monthly promo PDF so text can’t be changed, save a locked…
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.
The 'Changes Allowed' options control specific actions. For example, 'None' means no one can change anything. 'Inserting, deleting, and rotating pages' allows only those actions. 'Filling in form fields and signing existing signature fields' lets users interact with forms but not change content. Choosing the right option helps you protect your document while allowing necessary interactions.
Yes, if you only restrict printing or editing, people might still be able to copy text or images. To prevent copying, you must also select the option that restricts 'copying content, accessibility, and page extraction'. This ensures your intellectual property is better protected.
An owner password is like a master key. It is needed to change or remove the restrictions you set on a PDF. Without it, even you cannot alter the permissions later. This ensures that once a document is secured, its settings cannot be easily bypassed, providing strong control over your content.
If you forget the owner password, you will not be able to change or remove the restrictions on the PDF. The document will remain locked with the settings you applied. Adobe Acrobat cannot recover this password for you. It is crucial to store your owner password in a secure and memorable place to avoid losing control over your document's permissions.