Sign PDF

Draw a signature and place it on a PDF, right in your browser.

FreeBrowser-basedInstant

Your files are processed locally in your browser and are not uploaded to our servers. Your PDF, your drawn signature, and the signed result all stay in your browser — nothing is uploaded to a server at any point.

How to use Sign PDF

Drop in a PDF, draw your signature on the pad, then drag it onto the page you want. Resize it with the corner handle, place it on as many pages as you like, and download a new PDF with your signature burned in. This is a visual signature (an image placed on the page), not a certified cryptographic/PKI digital signature. Nothing is uploaded — the whole process runs locally in your browser.

Key features

  • Fully client-side signing — no upload, no waiting on a server
  • Draw a signature with your mouse, trackpad, or touchscreen
  • Drag to reposition and resize with a corner handle
  • Sign as many pages as you like in one session
  • Download a new PDF with your signature applied

Practical use cases

  • Signing a contract or agreement before emailing it back
  • Adding a signature to a form without printing and scanning it
  • Quickly signing off on a document from a phone or tablet

Supported formats

Accepted: pdf — Output: pdf

Limitations

  • Files larger than 30 MB are not accepted
  • Encrypted or password-protected PDFs are not supported
  • This is a visual signature image, not a certified cryptographic/PKI digital signature
  • Dragging and resizing require a mouse or touch input; keyboard-only placement is not yet supported

Frequently asked questions

How do I sign a PDF for free?
Drop your PDF into the box above, draw your signature on the pad, click "Add to page," then drag and resize it where you want on the page. Click "Download signed PDF" when you're done. No sign-up, no file is ever uploaded.
Is this a legally binding digital signature?
No. This places a drawn signature image onto the PDF page — it is a visual signature, not a certified cryptographic/PKI digital signature recognized by e-signature compliance standards. Use a dedicated e-signature service if you need a legally certified signature.
Are my files uploaded to a server?
No. Drawing, placement, and signing all happen locally in your browser. Your PDF never leaves your device.
Can I sign more than one page?
Yes. Navigate to any page using the page controls, add a signature, and repeat for as many pages as you need before downloading.
Is there a file size limit?
PDF files up to 30 MB are supported.

Part of PDF Tools