Folio

Open a PDF to get started

Drop PDFs or images anywhere, or

Everything runs on your device. Nothing is uploaded.

Signature

Digital signature

Sign the saved file with your certificate (.p12 or .pfx). PDF readers then show who signed it and whether anything changed since. Do this last: any later edit breaks the signature.

New form field

Header, footer or watermark

{n} is the page number, {N} the last one. {n:6} pads to 6 digits, e.g. for Bates numbers: ACME{n:6}