I want to replace text in pdf with Aspose.PDF, But throw a NullReferenceException.
the sample code :
var doc = new Aspose.Pdf.Document(@“D:\abc\1212\c++.1.pdf”);
var sourceText = “的”;
var targetText = “x”;
Regex rul…...and present in my system (as OpenType font). I’m working in a Windows...