Sign PDF
Add your signature, initials or the date to a PDF in under a minute.
100% Browser-Based — Files Never Leave Your Device
About Sign PDF
Draw your signature with a mouse, trackpad or finger, type it in a handwriting-style font, or upload a photo of your signature. Drag and resize it on the page, add today’s date, and download a signed PDF. Your signature image is never stored or sent anywhere.
How to sign PDF
- Select the PDF you need to sign.
- Draw, type or upload your signature, then click "Add to page". Drag and resize it into place.
- Click "Sign & download" to save the signed PDF.
Frequently asked questions
Is it safe to sign documents here? Are my files uploaded?
Nothing is uploaded. PDFToolsFast runs entirely in your browser using JavaScript and Web Workers, so your files stay on your device. You can even disconnect from the internet after the page loads and the tool keeps working.
Is this a legally valid electronic signature?
In many countries a visual electronic signature (like signing on paper and scanning) is accepted for everyday agreements, under laws such as the US ESIGN Act and EU eIDAS “simple electronic signatures”. It is not a certificate-based digital signature; check requirements for regulated documents.
Do I need to create an account?
No. There is no sign-up and nothing to install.
Can I sign multiple pages?
Yes. Move between pages with the page buttons and add signatures, initials or dates on as many pages as you need.
Is my signature saved?
No. It exists only in this browser tab and disappears when you close it.