How to Sign a PDF document

Add your signature to any PDF document. Draw, type, or upload your signature, position it on the page, and download the signed PDF.

4 min read Sign PDF Free, no signup required

Quick start

Sign PDF — Add your signature to any PDF document.

Get started in under two minutes:

  1. Upload your PDF
  2. Review and adjust settings
  3. Review the output
  4. Download the PDF
Open Sign PDF

Step-by-step instructions

Follow these steps to get the best results from Sign PDF:

1

Upload your PDF

Click the upload area or drag and drop your PDF file.

Tip: If the PDF is password-protected, unlock it with the Unlock PDF tool first.
2

Review and adjust settings

Use the settings panel to refine the output. Sign PDF lets you your signature to any pdf document.

Tip: Most settings work well at their defaults — only adjust when you need specific output.
3

Review the output

Check the result against what you expected. Look for any errors or unexpected output.

Tip: Verify the result before using it in production.
4

Download the PDF

Click the Download button to save the result to your device.

Tip: Open the downloaded file immediately to verify it is correct before deleting the original.
Open Sign PDF

Frequently asked questions

Is Sign PDF free to use?

Yes — Sign PDF is completely free with no account or signup required. All core features are available immediately.

What is the maximum file size supported?

PDF files up to 100MB are supported. Very large files may take longer to process depending on your device.

Does this work on Mac, Windows, and Linux?

Yes — Sign PDF works in any modern web browser regardless of operating system. No installation or plugins required.

Does Sign PDF work on mobile devices?

Yes — Sign PDF works on smartphones and tablets through any modern mobile browser. The interface adapts to smaller screens automatically.

Ready to sign a PDF document?

Sign PDF is free to use. No account or signup required.

Open Sign PDF