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Sign PDF Online

Stamp a signature image onto any page of a PDF at the position you choose.

Drag & drop your file here, or click to browse

Processed in your request only — nothing is stored.

About the Sign PDF

Sign contracts, forms and letters without printing and scanning. Upload the PDF and a picture of your signature (a PNG with a transparent background looks best), choose the page, position and size, and download the signed PDF.

How to Use the Sign PDF

  1. Click the upload box and choose your file, or simply drag and drop it in.
  2. Adjust the available options to match what you need.
  3. Click the action button and let House of Convert do the work in seconds.
  4. Download your result instantly — no email, no account, no watermark.

Why Use the Sign PDF at House of Convert?

  • Free forever — every tool on this site is free to use, with no hidden limits.
  • Private by design — your file is processed for this request only and never stored on our servers.
  • Fast — results are usually ready in a few seconds, even for larger files.
  • No installation — works entirely in your browser, on desktop or mobile.

Frequently Asked Questions

How do I sign a PDF online?

Upload the PDF and your signature image, choose the page, position and width, then click Sign.

How do I create a signature image?

Sign on white paper, photograph it, crop it tightly, and save it as PNG. A transparent background looks most natural.

How do I make my signature background transparent?

Save it as a PNG with transparency in an image editor; a white JPG background will show as a white box.

Is an electronic signature legally binding?

In many countries (under laws such as ESIGN, UETA and eIDAS) simple electronic signatures are valid for most documents, but some require certified digital signatures. Check your local rules.

Is this a digital (certificate) signature?

No — it places a visible signature image. It doesn’t add a cryptographic certificate.

How do I position the signature?

X and Y are in points from the bottom-left of the page (72 points = 1 inch).

Can I sign on any page?

Yes, enter the page number.

Can I sign a PDF on my phone?

Yes, in any mobile browser.

Can I add the date next to my signature?

Use Edit PDF to add text such as the date.

Does the Sign PDF tool store my signed document?

No, the PDF and signature are deleted immediately.