Sign PDF Online Free (Fill & Draw Signatures)
Draw or type digital signatures directly onto PDF contracts and agreements without server uploads.
How to Sign PDF
Upload Your PDF
Select the PDF contract, agreement, or document you need to sign.
Create Your Signature
Draw your signature with your mouse or finger, type it, or upload a signature image file.
Download Signed PDF
Position your signature on the page, then click Save to download the signed document.
Sign PDF documents online securely
Draw, type, or upload an image of your signature to sign PDF contracts, NDAs, and agreements. Position and scale your signature visually on any page of the document.
Since the visual signature is rendered locally on your device's browser, your signature data remains entirely yours and is never uploaded to external servers.
Frequently Asked Questions
How secure is Sign PDF?
Sign PDF uses industry-standard algorithms processed entirely within your browser. No passwords, encryption keys, or file data are transmitted over the internet, making it as secure as offline desktop software.
Is it safe to use Sign PDF with confidential documents?
Absolutely. Sign PDF processes everything locally inside your web browser using JavaScript and WebAssembly. Your files are never uploaded to any external server. Sensitive documents, contracts, and personal files remain completely private on your device.
Is Sign PDF really free? Are there hidden limits?
Yes, Sign PDF is 100% free with no hidden costs. There are no file size limits, no daily usage caps, no watermarks on your output, and no account registration required. Use it as many times as you need.
Is this a legally binding signature?
PDFtoPixel provides visual electronic signatures (draw, type, or image). For cryptographic digital signatures with legal certificates, a dedicated PKI-based tool is required.