Edit metadata for multiple PDFs at once

Apply author, subject and keywords to multiple PDF files at once, or automatically set the title from each file name. Ideal for consistently labeling a whole folder of documents. Free, local in your browser.

Drop one or more PDFs here

Drop here or click to choose

Files stay on your device — nothing is uploaded

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Your file is processed in your browser and never uploaded.

How does it work?

1
Choose your PDFs
Drag multiple PDFs here.
2
Choose which fields to set
Check author, subject and/or keywords and fill in the values.
3
Apply & download
Download all updated files in one ZIP.

Frequently asked questions

Are existing metadata fields overwritten?

Only the fields you check are changed. Unchecked fields remain unchanged.

Are my files uploaded?

No. Everything happens in your own browser. Your file never leaves your device and is not stored anywhere.

Is it free?

Yes, completely free, without watermark or account. The site is paid for by ads.

Why in the browser?

PDFrust runs entirely in your browser using WebAssembly and modern JavaScript libraries such as pdf-lib and PDF.js. Your file is never sent to a server — all processing happens locally on your device. This means your documents remain private by design, regardless of what they contain. There is no account required, no file size limit, and nothing is stored after you close the tab.