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Câu hỏi thường gặp
What permissions can I set on a PDF?expand_more
You can control printing, copying text, editing, commenting, form filling, and content extraction independently.
How are permissions enforced?expand_more
Permissions are embedded in the PDF encryption. Compliant readers will respect the restrictions you set.
Can someone bypass the permissions?expand_more
Permissions rely on the viewer honoring the PDF standard. An owner password adds stronger enforcement.
Do I need a password to set permissions?expand_more
Yes. An owner password is required. You can optionally add a user password to restrict opening the file as well.