Sahkan Tandatangan
Sahkan ketulenan dan integriti tandatangan digital pada dokumen PDF anda.
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
Muat Naik Fail
Pilih fail dari peranti anda atau seret dan lepaskan ke sini.
Pilih Pilihan
Sesuaikan tetapan mengikut keperluan dokumen anda.
Proses dan Muat Turun
Klik butang muat turun setelah fail selesai diproses.
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.