Edit Metadata

Yes. Many free PDF sites send your file to their own servers to do the work. This one does not. Your PDF is opened, changed and saved right inside your browser, so it is never uploaded, stored, or seen by anyone else. That matters here in particular, because metadata is often the reason people reach for a tool like this: a document is about to be sent outside the company and it still names the person who drafted it, the internal project it came from, or the machine it was written on.

This is the part most tools get wrong, and it is worth two minutes of your time. Every PDF has an old-style information dictionary holding a handful of plain strings. Most PDFs also carry a second copy of the same details as XML, called an XMP packet, and that is what Adobe Acrobat shows you. Readers disagree about which one wins.

Write one and not the other and you get a file that contradicts itself: the title you typed in one panel, the title you replaced still sitting in another. Both are written here, from the same values, every time. The packet is patched in place rather than rebuilt, so anything else it carries stays put, and a file that never had a packet is not given one.

• Title is the document's real name, which is not the same as its file name. It is what most readers show in the window bar.
• Author is the person or organisation credited with the document.
• Subject is a one-line description of what the document is about.
• Keywords are search terms, separated by commas. The commas are kept exactly as you type them.
• Created with is the app the document started in, such as a word processor.
• Producer is the app that wrote the PDF itself, which is often a different one.
• Created on and Modified on are the two dates the file carries, in your device's local time.

• The fields you edit, written to both stores so they agree.
• Fields you leave alone, written back exactly as they were, including the producer and both dates.
• Everything else in the packet: PDF/A markers, edit history, rights and anything a previous tool put there.
• The pages themselves. Text, images, form fields and page count come through untouched.
• A digital signature. Saving writes a new copy of the document, so a signature that was valid before will no longer match it.
• Words printed on the page. Changing the author does not remove a name written in the text.

Add two or more files and the page shows one form instead of an editor. What you type there is written to every file in the queue, which is the point: a folder of reports that all need the same author and the same subject is the reason this mode exists. Files are opened one after another on your device, and each one gets a row with its own download button.

Boxes you leave empty are left alone rather than blanked. A batch has no single set of current values to compare against, so wiping a field nobody typed in would be destructive by default. If you do want everything gone from every file, that is what the toggle is for.

Remove all metadata clears all eight fields and drops the XMP packet with them, so the file stops naming who made it, what made it, and when. Use it on anything going out to people who do not need that history.

Two honest warnings. A PDF/A file loses its conformance claim, because that claim is stored in the packet being removed. And this is not redaction: it clears what the file says about itself, not what the pages say. A name printed in the text stays printed in the text. Redact PDF is the tool for that, and Flatten PDF is the one for fixing filled form answers in place.

• Taking a colleague's name off a document before it goes to a client.
• Giving a scanned file a real title so it is findable later instead of showing up as a string of digits.
• Setting the same author and subject across a folder of reports in one go.
• Correcting a date that a converter stamped wrongly.
• Clearing the details out of a CV or a portfolio before uploading it to a job site.
• Adding keywords so a document management system files the PDF where it belongs.