Just applied for DTV soft power option yesterday. Today they requested 5 pieces of information - all of which was included in my application. Yes the PDFs were merged. The form shows the Biodata page of the photo page only as an example of what to upload yet today they requested both pages of passport Biodata pages including my signature. I converted it to a PDF to sign it but they request it to be a JPEG so I saved it back into a JPEG with the signature.
Just wanted to share in case this helps anyone with their application.
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