Case Study: DocuSign achieves secure, reliable eSignature processing with iText

DocuSign powers eSignature for over 1,000,000 customers with iText

DocuSign, a pioneering developer of electronic signature technology, needed to ensure their eSignature platform could reliably and securely digitally sign a wide variety of PDF documents. The challenge was handling PDFs with irregular or non-compliant structures from many creation sources, while also guarding against malicious files and ensuring high availability. To build this resilient service, they integrated the iText PDF library into their backend.

The solution implemented by iText provided a critical component within DocuSign's multi-layered, redundant signing platform. Using iText, primarily the C# version, alongside other toolkits, allowed DocuSign to process complex documents, apply advanced PAdES digital signatures, and ensure a reliable customer experience. The results include a robust, high-availability service that meets global e-signature regulations. Furthermore, DocuSign benefited from iText's commercial support and even contributed code improvements back to the iText library, enhancing the tool for the wider community.

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