Will Appian's upcoming IDP Application support fillable PDFs document?

Will Appian's upcoming IDP Application support fillable PDFs document? 

Last I checked with Google Support, and available Google OCR and Google Vision they do not support OCR on the fillable PDF field. The PDFs have to be externally flattened (lose the fillable fields) and then passed in order for Google OCR or Vision to extract entities from those fields. Will this be handled by the IDP application or this has to be handled outside the application. Also, if it has to be handled outside the IDP, what is the best way to convert fillable PDF to flat PDF? I didn't find any smart service in the Appian that readily does this. 

Thank you.

Gavin Dias.

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