2024-11-287 min read
Digital Signature Basics for PDF Documents
Understanding digital signatures and how to sign PDF documents securely.
Digital Signature Basics for PDF Documents
What is a Digital Signature?
A digital signature is an electronic method of proving document authenticity:
- Verifies signer identity
- Detects document modifications
- Can have legal validity
Types of Signatures
Electronic Signatures
Image or drawn signatures used for simple confirmations.
Certified Digital Signatures
Encrypted signatures using certificates that provide higher security.
SOLO PDF Signing
Sign locally so your signature image is never exposed externally. You can even draw directly on touch devices.
Related Articles
Why Local PDF Editing Matters for Privacy
Learn why processing PDFs locally on your device is crucial for protecting sensitive information.
PDF Redaction: Properly Remove Sensitive Information
Learn the difference between hiding and truly redacting information in PDFs.
PDF Security Best Practices
Essential security practices when working with PDF documents.
Try it yourself
Edit PDFs directly in your browser—no upload required.
Open PDF Editor