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PdfWriter. GetInstance throws system Nullreferenceexception [en] pdfwriter GetInstance throws System. NullRef
2022-07-03 07:16:00 【tonysh_ zds】
https://www.it1352.com/950570.html
Solution
Make sure you are not catching all exceptions. This NullReferenceException can very well be one that is already caught and handled inside iTextSharp, so you don’t care about it.
The fact that you can continue supports this theory.
Change the following setting to verify:
Debug -> Exceptions -> Remove the checkbox in the column “Thrown” of “Common Language Runtime Exceptions”.
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