Sign & stamp a PDF
Put a signature on a contract, invoice or form without printing it. Draw your signature with a mouse or a finger, or upload an image of one, then place it where it belongs and download the signed file.
Free, no account, and your file is never uploaded.
How to sign a PDF
- 1Choose the PDF you need to sign.
- 2Draw your signature, or upload a picture of it.
- 3Place it on the page, resize it, add a stamp or date if you need one.
- 4Download the signed PDF.
Worth knowing
- A contract never reaches a server. This matters more here than anywhere else on the site. The document and the signature are handled entirely inside your browser — a contract you sign here is not uploaded, stored or transmitted to anyone.
- The signature is drawn into the page. It becomes part of the document rather than an annotation layer, so it appears in every reader and survives printing and flattening.
- This is not a certificate signature. It is the digital equivalent of signing a printout — which is what almost every document actually needs. It is not a cryptographic signature backed by a certificate authority, so if you have been asked specifically for a digitally certified signature, this is not that.
- Upload a signature for a cleaner result. Signing with a trackpad rarely looks like your real signature. Signing a white sheet of paper, photographing it and uploading the picture usually looks far better.
When to use it
- Signing a contract, quotation acceptance or delivery note and sending it straight back.
- Adding a company stamp and date to a document without printing and scanning it.
- Signing a form on a phone or tablet with your finger.
Questions
- Is a signature added this way legally valid?
- For most everyday business documents an electronic signature is accepted, but rules depend on the country and the document type. This tool places a signature image, not a certificate-based digital signature. The guide on electronic vs digital signatures explains the difference.
- Is my document uploaded anywhere?
- No. The document and your signature are handled inside your browser and are not sent to a server.
- How do I get a neat signature?
- Sign a white sheet of paper, take a photo, and upload it. It usually looks far better than drawing with a trackpad.
Read the guide
- Electronic vs digital signature: what a signed PDF actually proves
Most PDFs only need an electronic signature — a sign that you agreed. A digital signature is a different thing: a certificate that proves who signed and that the file has not been altered since.
- How to fill in a PDF form, whether it has fields or not
A fillable PDF has real fields you click and type into. A flat PDF is only a picture of a form, so you place text on top of it. The steps are different, so find out which one you have first.
Related PDF tools
They are all in the PDF workspace, and the rest of the free tools — invoices, QR codes, scanned-PDF enhancement and file compression — need no account either.