1Upload the PDF documents whose restrictions you want cleared.
2Supply the password if the file needs one to open at all — that kind is real encryption and is not bypassed here.
3Run it; the printing, copying and editing permission flags are removed from the document.
4Download the unlocked PDF file.
Unlock PDF FAQ
What does Unlock PDF actually remove?
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Concretely, an owner password only sets permission flags — printing, copying, editing — and removing those flags is what this does. A user password, the kind that stops the file opening at all, is real encryption and is not bypassed here; you need the password. It removes restrictions on a document you can already open; it does not recover a document you cannot.
What is the difference between the two kinds of password?
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An owner password only sets permission flags — no printing, no copying, no editing — and any compliant reader could ignore them anyway. A user password encrypts the content so the file will not open at all. Only the first is a restriction; the second is real security.
Does the document format matter?
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It does. PDF fixes the page: fonts, vectors, raster images and text coordinates are frozen so every reader sees identical layout. The permission model is part of the format, which is why this behaves the way it does.
Anything specific to PDF here?
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Yes — a PDF is an object graph, not a page image, so text stays selectable and vectors stay sharp no matter what happens to the raster content inside it. Relevant to what survives once the flags are gone.
Can you remove a password I do not know?
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No, and we do not try. If the file needs a password to open, that is encryption and we will not attempt to break it. Supply the password and the restrictions can be lifted; without it there is nothing to do.
Is it legal to remove these restrictions?
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On a document you own or are authorised to use, removing permission flags so you can print or copy your own material is ordinary. On someone else's copyrighted material it is not. That judgement is yours to make, not ours.
What can I upload to Unlock PDF?
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Any standard PDF, including ones produced by a scanner, by a word processor or by a print driver. Files with an owner password that only restricts editing are handled; files that need a user password to open are not, and we do not attempt to break encryption.
Is there a file size limit on Unlock PDF?
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Yes: free accounts process documents up to 25 MB each, which covers most reports and contracts but not a long scanned document at 600 DPI; Ghostscript and qpdf do the work. Scanned PDFs are the usual thing that exceeds it, and compressing the document first is normally enough to bring it back under.
Will Unlock PDF lower the quality of my PDF documents?
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Text and vector artwork are objects rather than pixels, so they stay perfectly sharp at any zoom no matter what happens. Only the embedded raster images can degrade, and only if the operation you chose resamples them.
Can I run Unlock PDF on several PDF documents at once?
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Yes — upload the set and they process in parallel under one set of settings, which is the point of doing a document workflow here rather than clicking through a desktop reader.
Do bookmarks, links and form fields survive?
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Outlines, internal links and annotations are preserved wherever the operation allows it. Digital signatures are the exception: any change to the file necessarily invalidates a signature, because that is precisely what a signature is for.
Does Unlock PDF cost anything?
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No. Unlock PDF is free without an account, and nothing is stamped onto the pages. Uploaded documents are deleted from the workers shortly after the job completes.
