Type Default Value Read Only Description
Boolean True No Whether field appearances should be pre-generated.




This property determines whether field appearances are pre-generated.

Many PDF viewing applications are unable to generate field appearances dynamically. This means that they are unable to display fields given the field and the value of that field. Instead, they require the appearance of the field to be pre-generated.

A new appearance will only be generated when it is required. Typically, this is when the value of a field changes.

It is unlikely you will want to change the value of this property.