Home / Guides
PDF password and permissions guides
Practical explanations and step-by-step instructions for unlocking or protecting PDFs you are authorized to use.
How to remove a PDF password
Unlock one PDF on iPhone, iPad, Android, Mac, or Windows, including when the existing source password is required.
Read guidePDF open password vs. permissions password
Understand the difference between a user/open password, an owner password, and printing or editing restrictions.
Read guideHow to batch unlock or protect PDFs
Set up input and output folders, work with a shared password, and understand file order and partial failures.
Read guideHow to protect PDF opening, printing, and editing
Choose open-password and owner-permission settings that match how the PDF will be shared.
Read guide