PDF ToolsTool Review

Sign PDF

Provided byPDF24pdf24.org

Adds visible signatures and digital signature certificates to PDF documents.

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About this tool

What Sign PDF does

PDF24’s Sign PDF tool lets users add visible signatures to PDF documents by drawing, typing, or uploading an image of their signature, placing the mark directly onto the file. Beyond visual markings, the service also offers digital signature certificates that enhance the legal authenticity and integrity of the finalized PDF. The completed document can be downloaded immediately, and the platform emphasizes that files are automatically deleted from its servers after one hour.

Step by step

How to use the PDF24 Sign PDF

  1. 1

    Upload the PDF document you want to sign by dragging it into the drop zone or selecting a file from your device.

  2. 2

    Choose a signature method: draw your signature with a mouse or touchscreen, type your name, or upload an image of your signature.

  3. 3

    Position the signature on the PDF by clicking the desired location within the document.

  4. 4

    Apply the signature and review the marked-up PDF; if satisfied, download the signed file to your computer.

  5. 5

    Note that PDF24 automatically deletes uploaded files from its servers after one hour for privacy.

Is it right for you

Best for

Business professionals, legal experts, and individuals who need to sign PDF contracts, agreements, or personal records quickly and without installing software.

Limitations

  • The page is supported by advertising, which may distract from the signing experience.
  • No explicit option to switch between measurement units or adjust advanced signature properties beyond placement.
  • Results depend on the quality of the uploaded signature image or the precision of drawing/typing.
Questions

Sign PDF FAQ

Can I sign a PDF without creating an account?
Yes, PDF24’s Sign PDF tool requires no registration or subscription; you can upload and sign documents immediately.
Are signed PDFs legally binding?
The tool adds visible signatures and offers digital certificate options that enhance legal authenticity, making documents suitable for contracts and agreements.
What happens to my PDF after I sign it?
PDF24 automatically deletes files from its servers one hour after upload to protect user privacy.
Do I need to install any software to use this tool?
No installation is required; Sign PDF runs entirely online in your browser.
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