Convert PDF to Docx without uploading to Acrobat Cloud Servers?

Hi,

We wanted to explore an option to use Acrobat Services API. Upon further analyzing the process, it looks like it actually uploads any PDF to Acrobat Cloud Server to do the conversion.

Our requirement does not allow us to upload file outside of our organization becuase of PII/PHI. Is there any software (PDF to DOCX, or PDF extraction) that we can install on our servers and make an API call to that software on our  servers?