OptiPDFsigner
Bulk X.509 PDF digital signing for high-volume corporate documents
Overview
OptiPDFsigner is a digital-signature software for finance, legal and corporate teams needing to digitally sign PDF documents with X.509 certificates. Built by Pinnacle Finserve, it specializes in bulk PDF signing where users select input and output directories to sign large batches of corporate documents at once. The Windows-compatible, web-based deployment is ideal for organizations issuing high volumes of invoices, statements or compliance documents that need legally valid digital signatures applied quickly.
Key Features
6 capabilities across the Digital Signature workflow.
Bulk PDF Signing
Sign large batches of PDFs by selecting input and output folders, ideal for corporate document runs.
X.509 Digital Signatures
Apply standards-compliant X.509 digital signatures so documents are legally valid and tamper-evident.
Folder-Based Workflow
Drop documents into watched folders and let the software process and output signed PDFs automatically.

