Sign a PDF
Document and signature stay on this deviceDraw your signature with a mouse or finger, type your name, or use a photo of your signature, then click where it goes on the page. The PDF is signed in this tab, so the document and your signature never reach a server.
How to use it
- Drop the PDF.
- Draw, type or upload your signature. Turn on Add today's date if the form needs it.
- Pick the page, click where the signature goes, drag or resize it, and press Sign and save PDF.
Details
- Signature
- Drawn (pen, finger or mouse), typed in a script style, or a photo with the paper made transparent
- Placement
- Any page, any number of places; position and width are kept exactly as shown in the preview
- Kept
- The original text, links and layout. The signature is added as an image on top
- Type
- A visible electronic signature. Not a certificate-based digital signature (DSC / PKI)
- Engine
- pdf-lib, downloaded once and run in this tab. Text, links and bookmarks are kept
Questions
Are my files uploaded?
No. The page loads its code once, then reads and processes your files inside the browser tab. Nothing is sent to a server; you can confirm it in your browser's network panel while a file is processed.
Is an electronic signature like this legally valid?
Many countries accept simple electronic signatures for everyday agreements (for example under the US ESIGN Act and the EU eIDAS regulation), but some documents require a qualified or certificate-based digital signature, such as Indian Aadhaar eSign or a DSC for government filings. Check what the recipient requires.
Can I sign on my phone?
Yes. Draw with your finger on the pad, then tap the page where the signature goes.
How do I get a clean signature from paper?
Sign in dark ink on white paper, take a photo in good light and choose Upload image. White paper becomes transparent automatically. For a cropped image file under 20 KB, use the signature compressor.
Can others edit the signed PDF?
A stamped image can be removed by anyone with a PDF editor. For more protection, add a password and turn off editing with Protect PDF.