benchzy the file workshop

PDF tools · the label card

A PDF's stored details

Every PDF carries a small label card inside the file: title, author, dates, the program that made it. See yours exactly as stored, fix the title or author, or wipe the whole card before the file goes out. Everything runs in your browser; the document is never uploaded.

For checking what a file says about itself before you send it on, fixing a wrong title on a report, or wiping the label card from a file you are about to publish.

  1. 01

    Pick the PDF

  2. 02

    Read its stored details

  3. 03

    Change or wipe, then download

Drop a PDF on the tray, or click to pick one

PDF · it stays on this device

The label card, as stored

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Change the title or author

Leave a box empty to clear that line.

File spec

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This tool changes the file's label card, not its contents. Wiping the card is not cleaning the document; the honest limits below say exactly what stays.

Pick a PDF to begin.

How it works

The details live in a small record inside the file, separate from the pages. This page reads that record and shows every line exactly as stored, blanks included, with the dates in the file's own format (D: then year, month, day, hour, minute, second). Some files also carry a second copy in an XMP block; when a file has one, the table says so, and the wipe removes it as well. Saving writes only the record: this page never stamps its own name or today's date into your file's card. The download is how we protect your privacy: the program that does this job is part of this page, loaded from this site, and your file is read into the page and never uploaded. After a change, the table is read back from the finished file, so what it shows is the file's own state, not the plan.

Honest limits

Wiping these details is not the same as cleaning a document. It removes the label card only: the pages, their words and pictures, hidden layers, earlier workings kept inside the content, and anything written on a page itself (a name typed in the text, a logo, a footer) all stay exactly as they were. Removing a name from the card does not remove it from the pages. If a page shows something it should not, that is an editing job on the page itself; no tool here paints over page content and calls it removed.

A password-protected PDF keeps its details behind the password. Take the password off first with the unlock tool, then bring the file back.

Questions

What are a PDF's stored details?

Every PDF carries a small label card inside the file: a title, an author, sometimes a subject, keywords, the program that made it, and the dates it was made and last changed. Readers and search tools show these (a PDF viewer's properties panel reads the same card), and they travel with the file wherever it goes.

Does wiping the details clean my document?

No, and this page will not pretend otherwise. Wiping removes the label card only. The pages, their words and pictures, hidden layers and everything else inside the file stay exactly as they were. If a page itself shows something it should not, that is an editing job on the page, not a details job.

I wiped the card. Why does the file still show a title somewhere?

Some files carry a second copy of the details in what is called an XMP block, which some programs read instead of the card. This page checks for one, says so in the table when a file has one, and the wipe takes it too.

Why are the dates written so strangely?

Dates are shown in the file's own stored format, exactly as the file carries them: D: then year, month, day, hour, minute, second. What you read here is what the file says, not a translation of it.

Where does my document go?

Nowhere. It is read into this page and its details are read and written in your browser. Watch the network panel while it works if you want to check.