Hello,
2 of these bugs are similar (1 and 2), what makes me worry is that I’ve seen this type of bug in many parts of Aspose Email too, kindly note that when loading source files for read they might be on optical discs …... When saving as Xps and using DigitalSignatureUtil...DigitalSignatureUtil.Sign to sign the output xps, if PFX certificate is read-only...