Sign PDF
Add a handwritten or image signature
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Nothing is uploaded — every step runs in your browser.
Stop printing, signing and scanning. Open your PDF, draw your signature with a finger or mouse, drop it on any page, then download or send it straight to WhatsApp.
How it works
- 1Choose the PDF you want to sign.
- 2Draw your signature, type it, or upload an image of it.
- 3Drag the signature where you want it and resize.
- 4Download the signed PDF or share it via WhatsApp.
Frequently asked questions
Is this signature legally binding?
AddFile places an image of your handwritten signature into the PDF, which is widely accepted for commercial documents. It is not the same as a qualified electronic signature issued by a certification authority.
Is my file uploaded anywhere?
No. The PDF is opened in your browser memory and the signature is applied there too. Nothing is sent over the internet.
Can I sign from my phone?
Yes, and it is the nicest way to do it — draw with your finger, then share the signed file directly from your phone.