I encountered a very strange issue with the GroupDocs.Comparison.GetChanges(). When comparing 2 PDFs that are very different (Graphically and text), GetChanges() comes back with a sizable array of ChangeInfo (e.g. 4 in my case).
However, when comparing 2 PDFs that have the same format but the text are slightly different, GetChanges() comes back with a Count() of 0.
I have attached several images (the source pdf, the target pdf, the result pdf, snippet of my code). I am using version of 17.2.0 of GroupDocs.Comparison.