PDF metadata

Q: "What is the maximum file size?"

"12 MB per PDF. Metadata is stored in the file header, so even large PDFs are only read and written in chunks. The limit is for consistency with our other tools."

Q: "Is my PDF sent to a server?"

"No. Reading and saving metadata happens in your browser. Your file never leaves your device."

Q: "What metadata can I change?"

"You can edit the title, author, subject, and keywords. These are the standard fields most PDF readers and search engines use. Other metadata (e.g. creation date) is not editable here."

Q: "Why would I edit metadata?"

"To make the PDF easier to find (search engines and file managers use title and keywords), to credit the author, or to add a short description (subject). It's also useful for organizing a library of PDFs."

Q: "What if the PDF had no metadata before?"

"The fields may be empty when you first load the file. You can type in whatever you want and save. The new PDF will have that metadata stored."

View and edit PDF metadata: title, author, subject, keywords. Then download the updated PDF. Runs in your browser.

View and edit the main metadata of a PDF: title, author, subject, and keywords. Upload your PDF and the current values (if any) appear in the form. Change what you need and click Save metadata. Then use the download link to get the updated PDF.

Nothing is sent to our servers. Processing runs in your browser. Max 12 MB per file and 6 conversions per minute.

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Examples

Upload a PDF, set title and author, then download so it shows up correctly in your reader
Add keywords so the file is easier to find in search or in your own archive

FAQ

What is the maximum file size?

12 MB per PDF. Metadata is stored in the file header, so even large PDFs are only read and written in chunks. The limit is for consistency with our other tools.

Is my PDF sent to a server?

No. Reading and saving metadata happens in your browser. Your file never leaves your device.

What metadata can I change?

You can edit the title, author, subject, and keywords. These are the standard fields most PDF readers and search engines use. Other metadata (e.g. creation date) is not editable here.

Why would I edit metadata?

To make the PDF easier to find (search engines and file managers use title and keywords), to credit the author, or to add a short description (subject). It's also useful for organizing a library of PDFs.

What if the PDF had no metadata before?

The fields may be empty when you first load the file. You can type in whatever you want and save. The new PDF will have that metadata stored.