Sign PDF
Upload a signature image (PNG with transparent background works best) and stamp it onto selected pages.
How to use
The Sign PDF is a free online tool — no sign-up or download is required. Upload a signature image (PNG with transparent background works best) and stamp it onto selected pages.
- Choose a PDF file and upload your signature image.
- Pick the position, size and pages for the signature.
- Click Sign PDF and download the signed file.
Frequently asked questions
What does the Sign PDF do?
Free PDF signer: add your signature image to PDF pages online. Upload a signature PNG and place it. Runs in your browser.
How do I use the Sign PDF?
Open the Sign PDF page, upload your file using the form above, adjust the options, then click the main action button to get your result instantly. Download the result when done. No sign-up or installation is needed.
Is the Sign PDF free to use?
Yes. The Sign PDF is completely free, like every tool on SEO Tools by metacalculator.org. There is no sign-up, no watermark and no hidden limits.
Is my data private when I use the Sign PDF?
Yes. This tool runs entirely in your browser, so your input never leaves your device. Nothing is uploaded, stored or shared.