Is it safe to sign a PDF online here?

Yes. Your PDF is processed entirely in your browser — it never leaves your device or gets uploaded to any server. Your document stays completely private.

Completely free, no signup required. Upload your PDF, sign it, and download the signed version instantly.

Is this legally binding?

For personal or informal documents, this works well. For legally binding contracts with audit trails, court-admissible certificates, and compliance guarantees, use Zignature's full signing platform.

What PDF file size is supported?

Files up to 20MB are supported. For larger files or multi-signer workflows, create a free Zignature account.

100% Private · No Upload · Instant Download

Sign PDF Online
Free & Private

Upload your PDF, draw or type your signature, place it anywhere on the page, and download the signed PDF. Everything happens in your browser — your file never leaves your device.

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PDF files up to 20MB · Stays in your browser

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Instant

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Sign PDF Online
Free & Private

Upload Your PDF

Drop your PDF here

Create Your Signature

Click to Place Signature

Ready to Download

Need more powerful signing?

Sign PDF OnlineFree & Private

Upload Your PDF

Drop your PDF here

Create Your Signature

Click to Place Signature

Ready to Download

Need more powerful signing?

Sign PDF Online
Free & Private