About the Sign PDF Online – Draw Signature
Add a handwritten visible signature to a PDF online without sending your document or signature to the ToolMosaic server. Draw using a mouse, stylus or finger, place it on the document, then download the signed PDF.
Formula or method
The signature pad captures strokes as a PNG image. After you click a position in the PDF preview, the exported PDF embeds that signature image at the selected coordinates using the browser-side PDF library.
Worked example
Open a contract PDF, draw your signature in the signature pad, click the signature line on page one, then download the PDF containing the visible mark. You can place it on more than one page if needed.
How to use the tool
- Choose the PDF to sign and locate the intended signature area.
- Draw or add your signature and position it on the document preview.
- Download the annotated PDF and check the signature on the correct page.
Common uses
Personal acknowledgements, simple approval forms and documents that accept drawn electronic signatures.
When this tool is useful
Place a drawn signature on a PDF before sharing the annotated file.
What to check before relying on the result
A drawn signature image is not a cryptographic digital signature or certificate-backed identity verification.
Assumptions and limitations
This is a visible drawn mark, not a verified certificate-backed digital signature or identity-verification system. Validity under applicable e-signature law varies by document and jurisdiction. Do not use it where a qualified digital certificate, identity verification or an auditable signing workflow is required.
Frequently asked questions
Is a handwritten PDF image the same as a certified digital signature?
No. It is a visual signature image added to the PDF. It does not cryptographically prove the signer’s identity, document integrity or signing time.
Is a drawn signature the same as a certified digital signature?
No. A visual signature marks the document, but it does not prove cryptographic integrity or validate a signing certificate.
Continue with a related workflow
Privacy and support
Your inputs are processed locally in your browser. ToolMosaic does not upload or store the values you enter in this tool. Our tools are free, and we appreciate your support.