Runs in your browser · nothing uploaded

Sign PDF

Draw your signature, drag it onto the page, and download. Everything stays on your device.

✍️

Drop your PDF here

or browse your files

Your signed PDF is ready

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Your file and signature are processed on your device and are never sent to any server.

How to sign a PDF electronically

Signing a PDF electronically saves printing, signing, and scanning. For everyday documents — forms, letters, agreements — a drawn signature placed on the page is all you need. CorePDFTools lets you sign in your browser.

  1. Upload your PDF. Drop your PDF into the box above or browse to it.
  2. Draw your signature. Draw your signature with a mouse, trackpad, or finger.
  3. Place it and download. Position and size the signature on the page, then download the signed PDF.

Private signing, no account needed

Your signature is personal, and many e-sign services require an account and upload your document. CorePDFTools keeps both your signature and the document on your device. For everyday needs a drawn signature is widely accepted; legally demanding contexts may require a certified digital signature.

Common uses

Signing a form without printing

Draw and place your signature, then download — no print-sign-scan cycle.

Adding a signature on the go

Sign with your finger on a phone or tablet touchscreen.

Troubleshooting

Tips for best results

Frequently asked questions

Is a drawn signature legally valid?

For many everyday documents, electronic signatures are widely accepted. For high-stakes legal documents, check whether a certified digital signature is required.

Is my document uploaded when I sign it?

No. Signing happens entirely in your browser.

Can I sign on my phone?

Yes — drawing a signature with your finger on a touchscreen works well.

Is an electronic signature accepted?

For everyday documents, electronic signatures are widely accepted. High-stakes legal documents may require a certified digital signature.