Supported PDF Form Fields on iOS
PSPDFKit supports all form types specified by the PDF specification. We have to differentiate between field objects and annotation objects.
|Check, Radio, and Push Buttons
|List and Combo Boxes
Signature form fields and signature form elements require that your license includes either Electronic Signatures or Digital Signatures, or that your license was originally obtained in April 2021 or earlier. If none of these requirements are met, then signature elements will be omitted, and other form elements will be shown.
Retrieve Field and Annotation Objects
Field objects handle the state of the form field and offer appropriate methods for modifying the form field. Each form field has a
fullyQualifiedName that can be used to identify and retrieve a specific field object.
Each field object has one or more annotations linked to it. The main purpose of an annotation object is to offer a graphical element on top of a PDF (see the Introduction to Annotations guide).