ToolBoxSign PDF
Draw your signature on a PDF page.
Free · No signup · Files stay on your device
or drop a file here
How to use Sign PDF
- 1Select your PDF file.
- 2Draw your signature on the page with your finger or mouse.
- 3Press the button to apply your marks.
- 4Download your PDF.
Your files stay private
Your file is processed on your own device. It is never uploaded to our servers.
Frequently asked questions
Is Sign PDF free?
Yes. ToolBox is 100% free. No signup, no watermark, no daily limit.
Are my files uploaded to a server?
No. All work happens inside your browser on your own device. Your files never leave your phone or computer.
Does it work on mobile?
Yes, on Android, iPhone, tablets and desktop. Very large files can be slow on older phones.
What are the limits of Sign PDF?
This adds a drawn picture of your signature. It is not a legally certified digital signature.
More Edit PDF tools
Watermark PDF
Add a diagonal text watermark to every page.
Add Page Numbers
Add a page number at the bottom of every page.
Add Text to PDF
Place a line of text on every page of your PDF.
Add Image to PDF
Place a logo, stamp or picture on every page of your PDF.
Highlight PDF
Highlight important parts of a PDF in yellow.