CertSignPDF

CertSignPDF is a secure and easy-to-use app developed by SIMARGL LLC (dba TXNotaryForm.com) for Android devices and Chromebooks. Designed specifically for Texas Notaries, it enables digital signing of PDF documents using industry-standard X.509 digital certificates and cryptographic keys, in compliance with remote online notarization (RON) requirements.
Whether you're a commissioned notary performing digital notarizations or a professional handling sensitive documents, CertSignPDF helps ensure document integrity, authenticity, and legal compliance — all directly from your device.

Key Features:
• Digital PDF Signing: Sign documents using your own X.509 digital certificate and cryptographic key.
• Tamper-Evident Technology: Once signed, the document becomes tamper-evident—any changes will be clearly detectable.
• On-Device Processing: Signing is done entirely on your device. Internet connection is only used for certificate validation.
• Simple & Intuitive Workflow:
o Choose a completed PDF document (with all required fields, stamp, and drawn signature).
o Select your certificate from the device and enter your certificate password.
o Set a new filename and save the signed PDF.

📝 Designed for Texas Notaries:
CertSignPDF was developed with Texas notarial standards in mind, particularly to support Remote Online Notarization (RON). This makes it ideal for commissioned notaries who need a simple, secure, and portable tool to add cryptographic digital signatures to client documents.

💼 Use Cases:
• Remote online notarization
• Legal document certification
• Secure business and contract signing
• Digital recordkeeping and archiving

✅ Requirements:
• PDF document must be fully prepared before signing (all form fields filled, stamp applied, and drawn signature added).
• An X.509 digital certificate and private key stored on your device.
• Certificate password for authentication.

📎 Privacy & Security:
CertSignPDF respects your privacy. No documents are uploaded or stored on external servers. All signing operations occur locally, and your cryptographic keys never leave your device.

Certify with confidence using CertSignPDF — your trusted tool for secure and professional digital signing.
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