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Sign PDF

Draw or type your signature, then click to place and drag it anywhere.

Drop a PDF to sign

or browse your device

PDF up to 100 MB

How to sign a PDF

Add your signature to any PDF — draw it or type it in a signature font, then place and drag it exactly where you want on the page. Sign contracts and forms free, without printing or scanning.

  1. 1Open the Sign PDF tool and upload your document.
  2. 2Draw or type your signature in the side panel.
  3. 3Click on the page to place it, drag to position, then download the signed PDF.
Read the full Sign PDF guide →

Frequently asked questions

Is a drawn signature legally valid?
In many places a simple electronic signature is accepted for everyday agreements. For legally-certified digital signatures with a certificate, use a dedicated e-signature service.
Can I place my signature on any page?
Yes — click anywhere on any page to drop your signature, then drag and resize it, and add it in as many spots as you need.
Is pdfcdf free to use?
Yes. Every tool on pdfcdf is completely free, with no account, no watermarks, and no limits on how many files you process.
Are my files safe? Do they get uploaded?
Your files never leave your device. Every tool runs entirely in your browser, so your documents are processed locally and are never uploaded to a server or seen by anyone.
Do I need to create an account or sign up?
No. pdfcdf works instantly with no sign-up, no email, and no software to install — just open the tool and go.
Does it work on mobile phones and tablets?
Yes. pdfcdf runs in any modern browser on phones, tablets, Mac, Windows and Linux — nothing to download.

Sign a PDF on your device

Where the file saves and what your operating system can do on its own both change from device to device. These guides cover the specifics:

Sign PDF on iPhoneSign PDF on AndroidSign PDF on MacSign PDF on WindowsSign PDF on ChromebookSign PDF on iPad

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