What this tool does
Every PDF records who made it, with what application, and when. Send one to a supplier, a buyer or a court and they can open the properties panel and read all of it, including a name that is not the one on the letterhead. Removing that is not exotic — but doing it properly is more than clearing one panel, and almost every online remover gets it subtly wrong.
How it works
A PDF carries the same facts in at least three places, and they do not all clear together. The first is the Info dictionary, the plain-text legacy record holding Title, Author, Subject, Keywords, Creator, Producer, CreationDate and ModDate. That is the panel Acrobat and every browser show. The second is the XMP metadata stream, an XML version of the same fields, which also carries a document ID and an instance ID that have no Info-dictionary equivalent at all. A tool that clears only the first leaves the second fully intact.
The third is history. A PDF is append-only: saving an existing file does not rewrite it, it adds a new revision at the end and leaves the old bytes where they were. A field deleted in 2019 can still be sitting in an earlier revision, recoverable by anything that walks the file rather than trusting the final catalogue. This is also why a naive remover frequently hands back a file larger than the one it was given, which looks like a bug and is actually the correct behaviour of an append-only format. The tool counts the revision markers so you can see how many times a file has been saved.
Dates are worth a note of their own. They are stored as a run of digits with no separators and a UTC offset appended in an unfamiliar form, which is why a naive parser reports a date decades out. This tool decodes them properly, including the offset, and shows the result in your own timezone. It also flags which fields are actually identifying: an author name, a creator application and a producer string are the three that leak the most, and a document with all three is exactly the case people are downloading a remover for.
What this tool does not do is redact. It changes what the document declares about itself, and it cannot remove what is drawn on the page. If a name is printed in the body of the document, it stays there and stays selectable. A white box drawn over a name is not a redaction either: the text underneath remains in the file, which is why no genuine redaction tool is offered on this site.
Worked example
You scanned a signed agreement on a work machine. The scan carries your full name, the scanner's hostname and an exact timestamp, and you are sending it to a client.
- Drop the file in and read the found values: the Author field names you and the Producer field names the scanning software
- Choose to clear the identifying fields and keep the title, which you set to the document name yourself
- Save, then reopen the result here to confirm the fields are gone
- Check the revision count: the output is usually a little larger than the input, which is expected for an append-only format
The file you send no longer declares an author, a producer or a modification timestamp, and you can prove it by re-reading the saved copy rather than taking the tool's word for it.
Accuracy and limitations
- This removes what the document declares about itself. It does not remove text printed in the body of the document, and it is not a redaction tool.
- Because a PDF is append-only, a field removed now can still be present in an earlier revision of the same file. Saving a fresh copy of the cleaned pages is the only way to discard the history.
- The output is often larger than the input. That is the format working as designed, not the tool failing to shrink anything.
- A PDF carrying an XMP packet is detected and reported, but the detection is a byte scan rather than a full parse, so the removal itself is what actually clears it.
Frequently asked questions
- What does a PDF metadata remover actually remove?
- It clears what the document declares about itself: the title, author, subject, keywords, creator application, producer and the creation and modification timestamps. It does not and cannot remove text that is drawn on the page, so it is not a substitute for redaction if a name is printed in the body of the document.
- Why is the cleaned PDF bigger than the original?
- PDF is an append-only format. Saving a file adds a new revision at the end rather than rewriting what is already there, so the new empty metadata sits alongside the old bytes and the file grows. This is why metadata can survive in an earlier revision, and it is expected behaviour rather than a fault.
- Does removing metadata delete the document history?
- No. It clears the fields in the current revision. Earlier revisions of the same file can still hold the old values, because a PDF save appends rather than replaces. Saving a clean copy of just the pages you want is the reliable way to drop that history entirely.
- What is the difference between Creator and Producer?
- Producer is the library that wrote the PDF file, usually something like a printing or conversion tool, and Creator is the application the person was actually using, usually a word processor or scanner. Both identify you indirectly, and a scan often leaks a device or workstation name in one of them.
- Can I edit the title and author rather than clearing them?
- Yes. The tool reads the existing values and lets you replace them, which is the better option for a document that needs a proper title but must not carry the name of whoever scanned it.
- Is my PDF uploaded to clear its metadata?
- No. The file is opened, rewritten and saved inside your browser. Nothing is sent anywhere, which is the point of doing this in a tab rather than on a server, because a confidential document should not need to visit a third party to lose its author's name.