हस्ताक्षर प्रमाणीकरण
PDF कागजातमा रहेका डिजिटल हस्ताक्षरहरूको आधिकारिकता, वैधता र अखण्डता जाँच गर्नुहोस्।
Upload Signed PDF
About This Tool
Validate Signature allows you to verify digital signatures in PDF documents. Check if signatures are valid, view certificate information, and confirm document integrity.
Upload a signed PDF to see all signatures, their validity status, signer information, and whether the document has been modified after signing.
All validation happens locally in your browser. Your documents are never uploaded to any server.
How to Use
फाइल अपलोड गर्नुहोस्
आफ्नो उपकरणबाट फाइल छान्नुहोस् वा यहाँ तान्नुहोस् र छोड्नुहोस्।
विकल्पहरू समायोजन गर्नुहोस्
आफ्नो आवश्यकता अनुसार सेटिङहरू मिलाउनुहोस्।
प्रशोधन गर्नुहोस् र डाउनलोड गर्नुहोस्
कार्य पूरा भएपछि डाउनलोड बटन क्लिक गर्नुहोस्।
Export Report
Optionally download a JSON report of the validation results.
Use Cases
Document Verification
Verify that signed documents are authentic and have not been tampered with.
Compliance Audit
Check signature validity for compliance and audit purposes.
Certificate Review
View certificate details and expiration dates for signed documents.
Frequently Asked Questions
A valid signature means the document has not been modified since signing and the certificate chain is intact.