Systems and methods are disclosed for scan workflow processing to correctly and reliably generate a final output for a user. A workflow control service identifies capabilities of one or more devices for performing post processing steps defined in a scan workflow. An image scanner is utilized to scan a document to generate scanned document data. The workflow control service provides the post processing steps to the one or more of the devices based on the identified capabilities for each respective device. The devices then perform the post processing steps on the scanned document data to generate a final output. The workflow control service then transmits the output data to a device identified by the workflow to generate the final output.