How to use Sign PDF
- Add your PDF. Drag in the document you need to sign.
- Create your signature. Draw it with your finger or mouse, type your name, or upload a photo of your signature.
- Place, then save. Add it to the page, drag it onto the signature line, add the date, then save.
Is an electronic signature legally valid?
In most everyday situations, yes. In the US, the ESIGN Act and UETA give electronic signatures the same legal effect as handwritten ones. In the UK, they're recognised under the Electronic Communications Act 2000 and UK eIDAS.
Some documents, such as wills and certain property deeds, may need a handwritten signature or witnesses. This is general information, not legal advice. For high-stakes documents, check with a solicitor or attorney.
Tips for a clean signature
- On a phone, turn it sideways for a bigger drawing area.
- Uploading a photo? Sign on plain white paper with a dark pen, and photograph it in good light. The white background is removed automatically.
- After saving, flatten the PDF if you're also filling in form fields.
Private by design
Your files are processed entirely inside your browser on your own device. Nothing is uploaded to PDFWisely, so there's nothing for us to store, read or delete. You can even disconnect from the internet after this page loads.
Frequently asked questions
Is it free to sign a PDF?
Yes. No account, no watermark and no limit.
Is my signature stored?
No. Your signature and document stay in your browser and are never sent to PDFWisely.
Is this a digital signature?
It's an electronic signature (an image of your signature). Certificate-based digital signatures need a digital ID and specialist software.
Can I sign on my phone?
Yes. Draw with your finger on any modern phone or tablet.