Sign PDF Free

Sign PDF

Draw, type, or upload a signature — then click anywhere on any page to place it. Toggle Flatten to lock the signature into the PDF.

Sign PDF — Frequently Asked Questions

Is this a cryptographic signature?

No. This adds a visual/handwritten signature to a PDF — the same flow as signing a paper document. For cryptographic signatures (digital certificates, PKI), you'll need a dedicated signing tool.

Can the signature be removed after I save?

By default, signatures stay as annotations and can be moved or deleted. Toggle 'Flatten on save' to bake the signature into the page permanently.

Which signature format should I pick?

Draw feels most authentic if you have a trackpad or tablet. Type is fastest — pick a handwriting font. Upload is best if you already have a scanned signature image.

Does this upload my PDF anywhere?

No. Your PDF and signature never leave your browser.