Hi. Im using aspose version 9.0.5
Im following the documentation code to fill Form field of an existing pdf file and it's not working.
When I set the TextBoxField.Value = "xxx"; the field get set but I get an Reference null exception right after.
Code snipet :
is inside attachement , I also attached the pdf document.
I tried to use FormField with a PDf document that is not secure and the code snippet work.