Types of PDF Forms (AcroForms, Static XFA, Dynamic XFA)

Types of PDF Forms

There are three primary types of PDF forms, each with distinct characteristics and use cases:

1. AcroForms

• Traditional and most common type of PDF forms.
• Created using tools like Adobe Acrobat.

2. Static XFA PDF Forms

• Contain an XML stream with form field information, alongside the traditional PDF (AcroForm) structure.
• Can typically be opened and processed by non-Adobe viewers or tools that utilize the AcroForm structure.

3. Dynamic XFA PDF Forms

• Consist of an XML stream wrapped in a PDF shell, enabling dynamic display changes based on user interaction (e.g., field or button selections).
• Created using Adobe LiveCycle Designer or Adobe AEM Designer.
• Usually cannot be viewed or processed by non-Adobe viewers like Chrome or Safari, which may display placeholder warnings instead.

Notes on XFA Forms

• XFA forms (static and dynamic) are typically part of workflows involving Adobe AEM or LiveCycle Server installations, often utilized by government and large enterprise organizations.