SignPDF Pro
Digital Document Signing
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How to use
- Upload your PDF document using the area above.
- Click 'Sign PDF'.
- Draw or upload your digital signature.
- Place the signature on the document and adjust its size if needed.
- Download your signed PDF.
Why use this tool?
completely free, forever
No sign-up, no watermarks, and no daily limits.
Add Digital Signature
Sign your PDFs with a secure digital signature easily and fast.
Fast & Secure
Sign your documents quickly and securely, with no hassle.
Easy to Use
Simply upload your document and apply your signature instantly.
All Devices
Works on Windows, Mac, iPhone, iPad, and Android devices.
Frequently asked questions
Is this PDF signing tool free?▼
Yes — 100%. All tools on dipsac.com are completely free. No account needed, no watermarks, no daily limits.
How do I sign a PDF?▼
Upload your PDF, click 'Sign PDF', draw or upload your signature, then place it on the document and download the signed file.
Can I use a custom digital signature?▼
Yes, you can either draw your signature or upload an image of your signature to use it on the document.
Is my document secure while signing?▼
Yes, your files are processed securely and deleted automatically after signing to ensure privacy and security.
Which devices are supported?▼
Works on Windows, Mac, iPhone, iPad, and Android devices.
About Sign PDF Online
Add your digital signature to PDF documents online for free. Draw, type, or upload a signature — no printing needed. This free online tool runs entirely in your browser — no files are ever uploaded to our servers, ensuring your data stays private and secure. No registration, no watermarks, no limits.
Free forever
No hidden fees or paywalls
Zero uploads
100% browser-based processing
No account needed
Start using immediately