Extracting .tif file via SOAP

Hello Experts,

There is an implementation to be done where a SOAP request gives me an encrypted format of a .tif file which is a diagram document from target system. The designing of the pipeline is done in such a way that when a user hits our Snaplogic trigger pipeline from his/her browser, then he/she should get a download of a .tif file.

We executed the request from SOAP UI and this is the response:

Can someone recommend me what will be the best practice to achieve this implementation? Should I use SOAP Execute snap or REST GET? or REST POST?

Thanks in Advance