Image and file in the Prontoform questions are encoded in base64 scheme when return via the API. This means that when you want to upload the same file content via Workato to another connector, you have to decode the file before uploading it. This can be done easily using formula mode in Workato.
For example, when a new form is received via Prontoform, you would like to upload the answer of each question to Box. Based on the API response output from New Form in Prontoform, we see that Camera _Question or Sketch_Question contain image file with file content named bytes.
(in output schema) (actual API response)
Next, as you upload the image to Box, you have to ensure that the `Bytes` pill is decoded in formula mode under the file content field. This allows the file to be sent to Box in the correct type and format.