Sign PDF
Add digital signatures to your PDF documents
Drop your files here
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.PDF files • Max 200MB
Place a signature on a PDF for routine approvals, forms, and personal workflows. Review the document and use a legally appropriate signing method when required.
How to use Sign PDF
- 1.Select the PDF and open the signing workspace.
- 2.Create or place your signature in the document.
- 3.Position it correctly and download the signed copy.
About this PDF tool
This tool places a signature mark on the PDF. It may not provide identity verification, certificates, or the legal assurances required for regulated electronic signatures.
Common uses
- Sign routine forms
- Approve an internal document
- Add a handwritten signature image
Privacy and local processing
SelfPDF’s core PDF file tools are designed for browser-based processing without an account. AI-powered tools may send the text needed for their AI task to an external AI service. Process only files you are authorized to use, and keep a local backup of important originals.
Frequently Asked Questions
Is this a legally certified signature?
Not necessarily. Requirements vary by country, document type, and organization; use a certified e-signature service when required.
Can I move the signature?
Position the signature in the signing workspace before downloading.
Is the original PDF modified?
No. The signed file is generated as a separate copy.