Sign PDF
Draw your signature and place it on the page.
This places a visual signature, not a cryptographic one. It draws your signature image onto the page, which is what most everyday forms and agreements ask for. It does not create a digital certificate and cannot prove who signed — if you need a legally verifiable e-signature with an audit trail, use a dedicated e-signature service.
Drop the PDF you need to sign
Your document and signature never leave your device
No PDF yet
Add a PDF, draw your signature, then click where it should go.
Private by design. This tool runs entirely in your browser. Your file is processed on your own device and is not uploaded by DO101.
About the Sign PDF
Draw a signature with your mouse, trackpad or finger — or upload an image of one — then click anywhere on a page to place it. Everything happens on your device, including the signature itself.
How to use it
- 1Add the PDF you need to sign.
- 2Draw your signature, or upload an image of it.
- 3Click where it should go on the page, then download.
What you get
- Draw with mouse, trackpad or finger
- Or upload a PNG with transparency
- Adjustable size, placeable on any page
- Click a placed signature to remove it
- Document and signature both stay on your device
Frequently asked questions
Is this a legally binding signature?
It places a visual signature, which is what most everyday forms and agreements ask for. It is not a cryptographic digital signature and creates no certificate or audit trail. For a legally verifiable e-signature, use a dedicated e-signature service.
Is my signature stored anywhere?
No. It exists only in the page while you are using it, and is discarded when you close the tab.
What image works best for an uploaded signature?
A PNG with a transparent background. A JPG will carry a white box around the signature.
Keep going
People who use this tool usually reach for these next.
Stamp text like DRAFT or CONFIDENTIAL across every page.
Number the pages of a PDF, your way.
See every page and drag, rotate or delete it.
Combine several PDFs into one, in the order you choose.