Frequently Asked Questions
Everything about restricting PDF permissions
No. No open/user password is set, so the PDF opens and can be read by anyone immediately, in any PDF reader, exactly like before. Only the five listed actions are refused by readers that honour PDF permission flags.
Printing, editing/modifying content, copying or extracting text and images, adding annotations or filling in forms, and document assembly (inserting, deleting, or rotating pages). Reading and viewing the document is always allowed.
Only in readers that check these permission flags at all — genuine desktop apps like Adobe Acrobat Reader/Pro and Foxit Reader do. Chrome, Edge, and Firefox's built-in PDF viewers do not check permission flags — they only ever enforce an open/user password, which this tool deliberately does not set. So a PDF protected here will correctly grey out Print/Copy in Adobe Acrobat, but someone viewing it directly in a browser tab can still print or select text, because the browser simply isn't looking at that part of the file.
This is a universal limitation of PDF's permission-based security model — true of every "restrict without a password" tool, not specific to this one. For enforcement that every viewer respects, including browsers, the file needs an open password instead, which then requires everyone to enter it before reading.
128-bit AES encryption — the standard used by most PDF security tools for broad compatibility across PDF readers, including older ones.
Yes, up to 30 MB per PDF.
No — remove any existing password protection first (in Adobe Acrobat or a similar tool), then upload the unlocked file here.
Yes, completely free with no registration, no login, and no watermark added to the output. There are no usage limits.