Add a legally valid electronic signature to any PDF in seconds. Draw with your mouse or finger, upload a signature image, or type your name — then place it anywhere on the document.
How to use Sign PDF
Upload the PDF you need to sign.
Create a signature by drawing, uploading an image, or typing your name.
Place the signature on the page, then download the signed PDF.
Frequently Asked Questions
Are electronic signatures from PDF2Tool legally valid?
Electronic signatures are legally recognized in most jurisdictions (eIDAS in the EU, ESIGN Act in the US). For high-risk legal documents, confirm with your lawyer.
How do I draw a signature?
Use the Draw tab and sign with your mouse, trackpad, or touchscreen. The signature is converted into a clean image and dropped onto your PDF.
Can I upload an existing signature image?
Yes. Use the Upload tab to add a PNG or JPG of your signature — transparent backgrounds work best.
Can I sign in multiple places?
Yes. Place the same signature on every page that needs it before saving.
Are my files private and secure?
Yes. Files are processed in your browser whenever possible, and any file uploaded for server-side conversion is automatically deleted within 30 minutes. We never share, sell, or read your documents.
Is this tool really free?
Yes — 100% free with no signup, no watermarks, and no hidden limits. Use every PDF2Tool feature without an account.