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Sign PDF

Draw or type your signature and place it on the document.

Drop your file here

.pdf

This adds a visual signature. It is not a certificate-based digital signature.

How to use Sign PDF

  1. 1

    Choose a file (.pdf) or drop it into the box.

  2. 2

    Adjust the options to suit your needs.

  3. 3

    Click “Sign PDF” and download the result: pdf.

Your documents are processed entirely inside your browser. They are never uploaded to PDF100 or any third party, so Sign PDF is suitable for confidential files. Read our privacy policy.

About Sign PDF

Sign PDF lets you draw your signature with a mouse or finger, or type your name, and place it on a page of your document. You can add the date below the signature, choose the page and position, and set the signature size.

This creates a visual signature, like signing a printed page. It is not a certificate-based digital signature, so for documents that legally require one, use the e-signature service your organization specifies.

When to use it

  • Signing a rental agreement, permission slip or consent form
  • Adding your signature to a freelance contract or invoice
  • Signing forms on your phone without printing and scanning
  • Approving documents that only need a visible signature

Tips for better results

  • Draw your signature on a phone or tablet with your finger for the most natural result.
  • Use “last” as the page to sign the final page, wherever the document ends.
  • Fill in form fields first with Fill PDF form, then add your signature.

Sign PDF questions

Is a signature from Sign PDF legally binding?

Many everyday agreements accept a visual signature, but rules vary by country and document type. Sign PDF does not add a certificate-based digital signature, so check what the recipient requires for important legal documents.

Is my signature stored anywhere?

No. Your signature and document are processed in your browser and are not uploaded or saved by PDF100.

Is Sign PDF free?

Yes. Sign PDF on PDF100 is free with no account, no watermark and no daily limit. The site is supported by advertising.

Are my files uploaded when I use Sign PDF?

No. Sign PDF runs entirely inside your browser tab. The file is read and processed on your device and the result is saved straight to your downloads, so no copy reaches our servers.

Which files does Sign PDF accept?

Sign PDF accepts .pdf. The result is: pdf.

Is there a file size limit?

There is no fixed limit set by PDF100. Because processing happens on your device, the practical limit is your browser memory. Very large files work best on a desktop computer.

Does Sign PDF work on my phone?

Yes. Sign PDF works in current versions of Chrome, Safari, Edge and Firefox on desktop and mobile. Large documents are faster on a computer.

Are there any limitations?

This adds a visual signature. It is not a certificate-based digital signature.

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