エンタープライズ利用におけるPDF署名の信頼性向上

The BFO PDF Library by Big Faceless Organization is a high-performance Java toolkit for creating, editing, and displaying PDF documents programmatically. Designed for developers who need to generate or manipulate PDFs dynamically, it supports features such as PDF/A and PDF/X compliance, digital signatures, encryption, and complex layout capabilities including tables, charts, and barcodes. The library integrates seamlessly into Java applications and is often used in enterprise environments where reliable, scalable PDF output is required. It also includes a viewer component for rendering PDFs within Java user interfaces, making it suitable for both backend document generation and client-side display.

The Big Faceless PDF Library v2.29.4 update improves digital signature validation by enhancing support for “cross-signed” trust chains, where the signer's certificate is issued by an intermediary certificate authority rather than directly by a root authority. This change makes the validation process more reliable in enterprise and real-world environments, where certificate chains often include intermediate signers or alternate trust paths. By better recognizing and resolving these chains, the library reduces the likelihood of false negatives during signature checks, ensuring a more accurate reflection of a document’s authenticity. This enhancement is particularly useful for developers integrating PDF processes in regulated or compliance-heavy contexts, where accurate and consistent signature validation is critical.

To see a full list of what's new in v2.29.4, see our release notes.

Big Faceless PDF Library is licensed per server/machine and is available as an annual or a perpetual license depending on the use case. Technical support is available. See our Big Faceless PDF Library licensing page for full details.

Learn more on our Big Faceless PDF Library product page.