Is my document uploaded to a server?

No. The PDF is rendered and signed entirely in your browser. Contracts, agreements and offer letters never leave your device — a real difference from DocuSign, SmallPDF and iLovePDF.

Is this legally valid?

For most everyday purposes (contracts between parties who agree, forms, letters), a drawn or typed signature image is accepted. For regulated workflows needing certificates and audit trails, use a qualified e-signature service.

Can I sign on my phone?

Yes — draw your signature with your finger on the touchscreen. It often looks better than mouse-drawn.

Completely — no signup, no watermark, no document limits. Processing happens on your device so it costs us nothing.

✦ Free · Your Contract Never Leaves Your Device

Sign PDF Online Free

Draw or type your signature, click where it goes, download. No signup, no watermark — and unlike DocuSign, the document is never uploaded.

Why sign here instead of DocuSign or SmallPDF?

Every mainstream e-sign service uploads your contract to their servers before you can sign it. That's your salary, your rent terms, your business deal — sitting on someone else's infrastructure. Convert.AI renders and signs the PDF entirely in your browser: the document never travels anywhere, and the signed copy downloads straight to your device.

What it's good for

Rental agreements, NDAs, freelance contracts
Offer letters and HR forms
School/university forms and permission slips
Any "print, sign, scan" workflow — skip all three steps

A note on legal validity

An image signature placed on a PDF is widely accepted for everyday agreements where both parties consent (the same as ink on paper, exchanged by email). Regulated cases — notarized documents, some financial/government filings — require certificate-based digital signatures with audit trails; use a qualified provider for those.

Related: Merge PDF · Compress PDF to 1MB · JPG to PDF