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…...Replace Text in PDF throw a NullReferenceExcepti Aspose.PDF Product...Product Family replace-pdf-text sullivan March 26, 2022, 7:16am...