Aggregates conversion lifecycle event handlers. Pass an instance to the Converter constructor’s events parameter or to the fluent WithEvents method. Prefer this over the individual ConverterSettings handler properties, which are obsolete.
Fired once per whole-document conversion that fails, and once per contained item (an archive entry, an email attachment, a mailbox item) that cannot be loaded and is skipped while the conversion of the remaining items continues. For such an item the context carries its name, hierarchy level and item index, and Unknown as its source and target format.
Fired when a font referenced by the source document is not available and is substituted (either by a customer-supplied FontSubstitute rule, by the configured default font, or by the conversion pipeline’s internal fallback).