Sign PDF — Free Online

For most everyday documents — job and admission forms, rent agreements, school consent slips, office approvals — an electronic signature image placed on a PDF is widely accepted. What matters legally in most countries is your intent to approve the document and proof of who sent it, not the ink. However, this tool creates an electronic signature, not a certified digital signature backed by a cryptographic certificate. Banks, courts, land records and some government portals specifically require that certified kind, which must be issued by an authorised certificate provider.

No. There is no upload at all. The PDF is read, the signature is drawn and the new file is written entirely inside your browser tab. Close the tab and nothing remains — no copies, no accounts, no queues.

Yes, and it usually works better than on a laptop. The drawing pad accepts finger and stylus input, and dragging the signature onto the page works with touch. Turn your phone sideways for a wider pad, or zoom the browser out slightly if your signature needs more room.

Tick “Remove the white paper background” after uploading. The tool deletes the paper pixels and re-inks the strokes in the colour you choose, so only the signature itself lands on the page with clean, transparent surroundings.

Choose “All pages” to stamp it at the same position on every page (handy for initialling a contract), or “Selected pages” and type the numbers, for example 1,4-6. You can also sign page 1, move to page 2, drag it to a different spot and sign again.

Remove the password first. Browser PDF libraries cannot safely rewrite an encrypted file without its password, and this tool will never ask you for one.