ICEpdf 6.1.0 发布了，该版本支持关注的改进内容包括：
Rendering Core
New core API for validating digital signatures.
Updated Batik libraries to version 1.6.1.
Fixed a few annotation initialization issues.
Viewer RI
Addition of new utility pane tab for displaying digital signatures validation results.
Addition of several new dialogs for viewing digital signature properties and certificate details.
Examples
New signature validation example ./examples/signatures/SignatureVerifcation.java.
Run Time Dependencies
In order to support digital signature validation it is now required to included the included bouncy castle jars on the class path; bcprov-jdk15on.jar bcprov-ext-jdk15on.jar bcpkix-jdk15on.jar.
If signature validation is not used then these jars an be omitted from the class-path.
完整列表请看 ChangeLog。