Invalid charactesr appear when converting PDF to XML

Hi it seems that sometimes the convertion to xml adds some illegal cahracters to the the xml, and the xml is not valid.
Called the save method, with SaveFormat.PdfXml.
The xml that created contains characters like " & #x4 ; & #x0; " which are invalid in xml 1.0

see attached filesDynamicEmail_AcroForm.pdf (232.5 KB)xmlresult.zip (238.3 KB)

@romans1

Please create a standalone console application (source code without compilation errors) that helps us to reproduce your problem on our end and attach it here for testing. We will investigate the issue and provide you more information on it.