I am combining .jpg images which are correctly positioned in their jpg files. So I think this position could be passed to an view format like pdf. So I am doing now the following but it gives pictures in quite randomly positionedpdfjoin *.jpg
How to orientate many pictures well when pdfjoin *.jpg?
pdf;join
The exif data did not help here, neither pdfjoin. LaTeX is the right tool for the task in the thread How to rotate image 90 if height overful? The case where both figure dimensions are greater than the page size is not solved. I think you cannot solve the case by exiftool and pdfjoin directly because you have to related pictures to each other such that they are nicely orientated in the page. 