PDF Digital Signature Tool
Add legally binding digital signatures to PDF documents. Create secure, authenticated signatures for contracts and official documents.
Upload PDF Files
Drag and drop your PDF files or click to browse
Supports PDF files • Max 5 files • Max 50MB per file
Signature Type
Text Signature Settings
Signature Position
Page to place the signature (1 = first page, -1 = last page)
Security Notice
Digital signatures provide document authentication and integrity verification. Certificate-based signatures offer the highest level of security and legal validity.
PDF Digital Signature Tool Features
Powerful features designed for professional PDF processing
Digital Signature Creation
Legally binding digital signatures
Multiple Signature Types
Secure document authentication
Signature Positioning
Streamline approval processes
Certificate Support
Eliminate printing and scanning
Secure Signing Process
Professional document signing
Legal Compliance
Works instantly without software installation
Why Choose Our PDF Digital Signature Tool?
Professional-grade PDF processing with enterprise-level security
Legally binding digital signatures
Secure document authentication
Streamline approval processes
Eliminate printing and scanning
Perfect For
Common use cases where our pdf digital signature tool excels
Contract signing and approval
Legal document authentication
Business agreement execution
Invoice and receipt signing
Academic document verification
Professional certification
Frequently Asked Questions
Everything you need to know about our pdf digital signature tool
How does the PDF Digital Signature Tool work?
Our pdf digital signature tool uses advanced algorithms to process your PDF files. Simply upload your file, choose your settings, and download the processed result. The tool works entirely in your browser for maximum security and privacy.
Is the PDF Digital Signature Tool free to use?
Yes, our pdf digital signature tool is completely free to use. There are no hidden costs, registration requirements, or usage limits. You can process as many files as you need.
Is it safe to use this pdf digital signature tool?
Absolutely. All processing happens locally in your browser, and your files are never uploaded to our servers. Your documents remain completely private and secure.
What file formats are supported?
Our pdf digital signature tool supports all standard PDF formats and versions. The tool is compatible with PDFs created by any application and maintains full compatibility.
Can I use this tool on mobile devices?
Yes, our pdf digital signature tool is fully responsive and works perfectly on smartphones, tablets, and desktop computers. The interface adapts to your screen size for optimal usability.
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Expert Verified Information
Our calculations are reviewed and verified by qualified experts
Dr. Thomas Anderson
PhD Cybersecurity, PDF Security Expert
Document security specialist with 19+ years experience
Dr. Anderson specializes in PDF security, digital signatures, and document encryption. He has worked with government agencies and Fortune 500 companies on secure document workflows and has contributed to PDF security standards development.
This PDF tool provides professional-grade document processing based on industry standards and expert verification. Results are suitable for business and professional use.