Problem with displaying uploaded files, shot by cell phone uploaded

When filling out an online form where, among other things, files can be uploaded and attached, there is the following problem:

If the user fills out the form with the smartphone (problem only here and not with the desktop version) and uploads images in the field “”Upload files”, which he shoots directly in the process (i.e. not taken from the gallery), these are embedded the wrong way around within the PDF, which is generated and attached with the PDF Builder. This happens mainly with images shot on edge.

The page I need help with: [log in to see the link]