Annotation FieldType Property. The field type for any form field associated with this annotation. ABCpdf .NET PDF Library. From ABCpdf .net previous page next page FieldType Property Type Default Read Only Description [C#] string [Visual Basic] String n/a Yes The field type for any form field associated with this annotation. Notes The field type for any form field associated with this annotation. The following field types are available: "Pushbutton" "Checkbox" "Radio" "Text" "List" "Combo" "Signature" "Unknown" More details of these field types can be found in the Section 8.6.3 of the Adobe PDF Specification. Example None. previous page start next page