Sign a PDF document
Draw your signature below with the mouse or finger, or upload a signature image. Then place it on the PDF at the position you choose.
Drop a PDF here
or click to choose a file
Accepted: PDF · No upload
How to sign a PDF
- Add the PDF file.
- Draw your signature with the mouse or finger, or upload a signature image.
- Set position and width. Y is measured from the top.
- Click Apply signature to download the signed PDF.
Electronic signature vs digital signature
This tool places an electronic signature image on the page. It is a visual signature that many contracts accept, but it is not a certified digital signature. It does not include a certificate, timestamp or cryptographic verification. For legal certainty in high-value or regulated agreements, use a qualified digital signature service.
Privacy
Runs in your browser. Your signature image never leaves your device.
Known limitations
- Electronic signature only, not certified.
- Signature is flattened into the page and cannot be removed after saving.
- Digital signatures already on the PDF become invalid.
Frequently asked questions
Is this legally binding?
Many contracts accept simple electronic signatures. For regulated or high-value documents, use a qualified digital signature from a certificate authority. OmniPDF does not claim legal equivalence to those services.
Can I remove the signature later?
No. The signature is baked into the page content. Keep the original PDF if you may need to sign again.