You can open PDF forms in PDF Expert for Mac to fill them out. Please check the list of supported formats:
Acro forms created in Adobe Acrobat or similar ones
Static XFA forms created in Adobe LiveCycle
Dynamic XFA forms are currently not supported in PDF Expert for Mac.
Please note that you can send us your dynamic XFA forms and we will convert them to static. After that, you’ll be able to open them in PDF Expert.
Note: during the conversion, form's functionality and data could be lost and we cannot influence that process.