Tandatangan Digital
Tandatangan dokumen PDF dengan sijil digital kriptografi yang sah di sisi undang-undang.
Upload PDF to Sign
About This Tool
Digital Signature allows you to add cryptographic X.509 digital signatures to PDF documents. Unlike simple drawn signatures, digital signatures provide legal validity and document integrity verification.
Upload your certificate file (PFX, P12, or PEM format), enter the password, and sign your PDF. You can add visible signatures with custom text, images, and positioning, or invisible signatures for document integrity only.
All signing happens locally in your browser. Your certificate and 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.
Sign and Download
Click Sign PDF to apply the digital signature and download the signed document.
Use Cases
Legal Documents
Sign contracts, agreements, and legal documents with legally binding digital signatures.
Business Approvals
Digitally sign invoices, purchase orders, and approval documents for audit trails.
Document Integrity
Ensure documents have not been tampered with after signing.
Frequently Asked Questions
PFX (.pfx), PKCS#12 (.p12), and PEM (.pem) certificate formats are supported.