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
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.
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.
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.
Why does a PNG site host Unlock PDF?
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PNG.to is built around the format you use when you cannot afford to lose a pixel: lossless, alpha-capable, and the correct answer for screenshots, logos, line art and anything with hard edges. Image work is rarely one step: people arrive to change a format and leave needing the picture a different size, a different weight or a different shape. Running Unlock PDF on the same upload pipeline, the same size caps and the same account is the whole reason it is here rather than on a fourth tab.
What should I do with the result once Unlock PDF is finished?
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The converter on this site moves images to and from PNG, JPG, WebP, GIF and SVG — which is the step where the decision about transparency actually gets made. That is the step most people actually came for, and doing it after Unlock PDF rather than before it means the conversion works from the file you finally settled on.
Is Unlock PDF here the same tool the sibling sites run?
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The engines are shared — the same libraries, the same workers, the same limits. What differs is the advice, and the advice here starts from one fact about the format this site is named after: there is no quality slider to get wrong — a PNG round-trips bit-exactly, so the only thing edits cost you is file size. A PNG site is opinionated about where PNG is the right destination and where it is not, and that judgement is worth more than the button.
Do I need an account, and does anything get kept?
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No account, and nothing is kept: uploads are deleted from the workers shortly after the job finishes, and nothing you process is indexed, listed or used for anything else. Free accounts exist for history and batch size, not for access.
