C4ConverterPDF Tools
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Add a visual signature to a PDF

Place and size a visual electronic signature precisely on the document page you choose.

PDF · 25 MB maximum · up to 100 pages

Sign document

Create a visual electronic signature

This adds a visual electronic signature. It is not a certificate-based digital signature.

Choose a signature style

Instructions

How to use Sign PDF

  1. Upload the PDF you need to sign.
  2. Type, draw or upload a signature and place it on a page.
  3. Review the placement and export the signed copy.

Common uses

  • Add a visual approval mark to a form.
  • Place an uploaded signature image on a prepared signature line.

Known limitations

  • This is not a certificate-based digital signature.
  • You are responsible for confirming whether a visual signature meets your legal or organizational requirements.

Troubleshooting

The uploaded signature is rejected

Use a standard PNG or JPG image within the displayed size limit.

Sign PDF FAQ

Is this a certificate-based digital signature?

No. It adds a visual electronic signature and does not create a cryptographic certificate signature.

Can I choose the signature page?

Yes. Select a page and place the signature in the workspace before export.

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