Choose and preview
Add a PDF and open the page to sign.
Add Signature to PDF privately.
Add Signature to PDF by PrivatePDF lets you create a visible signature, drag it into position on any page, and flatten it into the pdf locally. this is not a certified digital signature entirely in your web browser. Processing happens entirely in your browser — your file bytes are never sent to PrivatePDF's servers. Nothing is uploaded. There is no account, no watermark, and no file-size limit imposed by the platform.
- 01Add a PDF and open the page to sign.
- 02Type, draw, or upload a signature and place it on the page.
- 03Drag it into position, finish, and download.
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How to use Add Signature to PDF
Type, draw, or upload a signature, place it on any page, drag it into position, and flatten it into the PDF.
Make your changes
Type, draw, or upload a signature and place it on the page.
Verify and download
Drag it into position, finish, and download.
- Type, draw, or upload
- Direct drag positioning
- Undo and remove controls
- Processing happens entirely in your browser
Key takeaways
- Processing happens entirely in your browser — files are never uploaded to PrivatePDF servers.
- No account or signup required to use any tool.
- No watermarks are added to the output.
- No platform-imposed file-size limit (practical limit is your device memory).
- Type, draw, or upload
- Direct drag positioning
- Undo and remove controls
Questions about Add Signature to PDF
Useful answers before you start.
Is this a certificate-based digital signature?
No. It adds a visible electronic signature. It does not create a cryptographic certificate or audit trail.
Can I sign more than one page?
Yes. Open each page and place as many signature elements as needed.
Are my files uploaded to your servers?
Processing happens entirely in your browser — your file bytes are never sent to PrivatePDF's servers. Nothing is uploaded.
Is PrivatePDF free to use?
Yes. PrivatePDF is completely free. There is no account, no watermark, and no artificial daily limit.
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