PDF Sign
PDFAdd electronic signatures to PDF documents. Draw with mouse or touch, or upload a signature image, then customise the position, size and target page in one.
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About PDF Sign
Add electronic signatures to PDF documents directly in your browser without printing, scanning, or any third-party service. Draw your signature using mouse or touch input with customizable stroke color and width, or upload a pre-made signature image with transparent background (PNG with transparency recommended).Position the signature anywhere on any page with drag-to-move, and resize or rotate it to fit the signature line. The signature is embedded as an image overlay on the PDF canvas, preserving document quality and leaving the original text and graphics intact. Ideal for signing contracts, consent forms, purchase orders, and non-disclosure agreements. Please note this tool produces image-based signatures, which differ from certificate-based digital signatures in legal weight and tamper-evidence; for formal legal documents use a professional e-signature service.
How to Use
- Open the PDF Sign tool
- Upload the PDF file
- Adjust the output options as needed
- Click the Process button; results appear in real time
- Copy or export the result
Use Cases
- Contract signing — Add handwritten electronic signatures to PDF contracts for quick signing.
- Document approval — Sign approval documents to confirm content and streamline approval workflows.
- Personal documents — Add signatures to resumes, applications, and other personal PDF documents.
- Quote confirmation — Sign quotes and order confirmations to indicate acceptance of terms.
- Onboarding documents — Add handwritten signatures to offer letters and NDAs and send them back.
FAQ
Is the electronic signature legally binding?
This tool generates image-based signatures which may not have the same legal weight as digital certificate signatures. For formal legal documents, use professional e-signature services.
Can I draw Chinese signatures?
Yes. Draw directly on the canvas with mouse or touchscreen for any language signature.
What image format is supported?
PNG format with transparent background is recommended for the best results.
Is the signature vector or raster?
It is embedded as a raster image overlay, suitable for visual attestation. For verifiable signer identity use a professional digital-certificate solution.
Can I move the signature after placing it?
Yes. Drag it to any coordinate and adjust scaling and rotation to fit the signature line.
Can I sign multiple pages?
Yes. Apply signatures to a page range or the whole document for multi-page contracts.