Does what I needed it to do, but...

Needed to convert multiple Dropbox JPG files into a single PDF, with one JPG per PDF page. This was easy to do, but the app instructions were not 100% clear. The trick was to ignore the apps Dropbox interface and instead save the files to the camera roll from Dropbox and then build the PDF from the camera roll images.

Curt971 about PDF Converter- Word to PDF app