Make & keep
Password-protect a PDF of private portrait scans in Preview
Export a separately named, password-protected PDF and verify the protection before sharing it.
A PDF containing private family images can be protected with an open password in Preview. Export to a new filename so the unprotected working PDF remains available. A password is an access control for the file, not a secure way to send the password through the same channel as the document.
Export a separate protected copy
Open the PDF in Preview and choose File > Export. Enter a new name so you create a protected copy rather than change the original. Click Permissions, enable Require Password To Open Document, and enter and retype the password. Use a unique password that the intended recipient can receive through a separate channel.
Evidence: Apple user guide
Choose document permissions
Set an owner password if you also need to control permissions for printing or making changes. Review the checkboxes carefully: a checked option allows that action without the owner password; an unchecked option requires it. Click Apply, then Save. Apple says the changes take effect the next time the PDF is opened.
Evidence: Apple user guide
Test the saved file
Close the exported file and reopen it to confirm it prompts for the open password. Test the recipient’s intended workflow, such as viewing or printing, before sending. Keep the password in a separate delivery channel and retain the unprotected source in an appropriately secure location; PDF protection does not remove image metadata or control copies after a recipient opens it.
Evidence: Apple user guide
Sources & further reading
Sources for the specific facts and product descriptions above. Our worked examples, interpretations and practical suggestions are original editorial guidance.
- Apple Preview User Guide — Password-protect a PDFApple user guide