License does not work for PPTX files while comparing documents. However, it works for XLSX files.
License lic = new License();
lic.SetLicense(@"GroupDocs.Comparison.lic");
using (Comparer comparer = new Comparer("document1.pptx"))
{
comparer.Add("document2.pptx");
comparer.Compare("compare-result.pptx");
}
compare-result.zip (99.6 KB)
xlsx documents.zip (19.0 KB)