https://userapps.support.sap.com/sap/support/knowledge/en/1951502
1951502 - saveAs() method returns -1 for PDF format in PB .NET Web forms and/or Web services within...
On Windows 7 32-bits (Professional or Enterprise) the datawindow method dw.SaveAs() in PDF! format always fails with -1 response in PB .NET Web Forms and/or PB...