Sign PDF Online Free — No Sign-Up Required
Add your signature to any PDF document. Draw, type, or upload your signature. Everything happens in your browser — your documents stay private.
Coming Soon
PDF signing is under development. In the meantime, try our available PDF tools:
Draw Signature
Use your mouse, trackpad, or touchscreen to draw your signature
Type Signature
Type your name and choose from beautiful signature fonts
Upload Image
Upload a photo or scan of your existing signature
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Frequently Asked Questions
Is it free to sign PDFs online?
Yes! ClientPDF lets you sign PDFs completely free — no limits, no watermarks, and no sign-up required.
Is an electronic signature legally binding?
Electronic signatures are legally recognized in most countries under laws like ESIGN (US) and eIDAS (EU). For highly regulated documents, consult legal advice.
Can I draw my signature with a mouse or touchscreen?
Yes! You can draw your signature using a mouse, trackpad, or touchscreen. You can also type your name and choose from signature fonts, or upload an image of your signature.
Is my signed document secure?
Absolutely. All processing happens in your browser. Your PDF and signature never leave your device — 100% private and secure.
Can I add multiple signatures to a PDF?
Yes, you can add multiple signatures, initials, dates, and text annotations to different pages of your PDF document.