Sign PDF
Add your signature to a PDF by drawing or typing it, place it on any page, and download the signed file. Nothing uploaded.
- Runs in your browser
- Nothing uploaded
- Free, no sign-up
Draw, type, or upload your signature, place it on the page, and download the signed PDF. Your document is processed on your device and never uploaded.
Draw with your mouse or finger inside the box.
A PNG with a transparent background works best.
Where should the signature go?
How to Use Sign PDF
- Upload your PDF. Drag the file onto the box or click to choose it. The tool reads how many pages it has and fills in the page list.
- Create your signature. Draw it in the box with a mouse or finger, or switch to Type and enter your name in a signature style. Use Clear to start over.
- Place it on the page. Use the grid to pick a corner, edge, or the center, choose which page, and set the size. Signatures usually sit at the bottom of the last page.
- Sign and download. The tool stamps your signature onto the chosen page with the pdf-lib library and saves a new signed PDF. The original is left untouched.
Frequently Asked Questions
Is my document uploaded anywhere?
No. The PDF is opened and signed inside your browser, so the file and your signature never leave your device.
Is a drawn or typed signature legally valid?
In many situations a clear intent to sign is what counts, and a drawn or typed signature can be accepted. For high stakes contracts, check the rules that apply to you or use a certified e-signature service.
Can I put the signature on any page?
Yes. After you upload the PDF, choose the page from the list, then use the grid to place the signature in a corner, along an edge, or in the middle.
Will it change the rest of my PDF?
No. The tool only draws your signature image onto the page you pick. Every other page and all existing text stay exactly as they were.
Does it work on scanned PDFs?
Yes. A scanned page is treated like any other page, so your signature is placed on top of it and saved into the new file.
How is my signature added to the file?
Your drawing or typed name is turned into a transparent image and embedded on the page, so it sits cleanly over the document without a white box around it.
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