Sign PDF
Add your signature (an image) to a PDF at the position you choose.
- Free, no sign-up
- No watermark
- Files deleted automatically
or drop files here · paste with Ctrl+V
PDF, PNG, JPG, JPEG
Up to 20 files, 1 GB each
Suggested tools
About Sign PDF
Sign PDF places an image of your signature onto a PDF — on the first page, the last page or every page — in the corner or centre you choose. It is the quick way to sign a letter, an invoice or an approval form without printing and scanning.
Take a photo of your signature on white paper or draw it in any app, save it as PNG (ideally with a transparent background), and upload it with your document. You control the signature's width as a percentage of the page.
How to use Sign PDF
- Upload the PDF to sign, then upload your signature image.
- Choose the page (First, Last or All), the position and the size (10–60% of the page width).
- Press Sign and download the signed PDF.
Key features
- Signature on the first, last or every page
- Five positions: four corners and centre
- Size from 10% to 60% of the page width
- PNG with transparency, JPG and other image formats
When to use Sign PDF
- Signing an offer letter, NDA or rental agreement that asks for a signature on the last page.
- Adding your signature to every page of a document that needs initials on each page.
- Approving invoices or purchase orders without printing them.
Tips and common problems
- A signature width of about 20–30% of the page usually looks natural.
- Crop your signature image tightly; empty paper around it pushes the signature away from the corner.
- If a form has a specific signature box, check whether one of the corner positions lands on it before sending.
- For legally binding digital signatures (such as a DSC for government filings), use certified signing software.
Frequently asked questions
This adds a visible image of your signature, which is accepted for many everyday documents. It is not a certificate-based digital signature (such as a DSC used for government filings). Check what your recipient requires.
Sign on plain white paper, photograph it in good light, crop it tightly and, if possible, remove the background to make a transparent PNG.
No. The files are used only to create your signed PDF and are deleted automatically afterwards.
Guides
- How to Sign a PDF Without Printing and Scanning — Make a clean signature image, place it on a PDF in the right spot, and learn how an image signature differs from a digital signature (DSC) and Aadhaar eSign.