As of v2016R2, Qoppa’s library jPDFWeb and the derived HTML PDF viewers built on top of jPDFWeb will display digital signatures validation status contained in the original PDF document in the output / rendered HTML files.
The signature validation is done on the server side using the Java trusted certificate authorities or your own trusted certificate authorities. The digital signature appearance including the validation status will be drawn on the SVG / HTML5 output and will render in any browser, on any platform.
To validate digital signatures when running jPDFWeb, the Bouncy Castle libraries are required in the classpath. Read more about dependencies in jPDFWeb’s developer guide.
