PDF from multiple images ends up with some images being cut

First problem:
Images are all .png all with different resolutions (width 570 to 865, height 373 to 3801) while the created PDF has all pages the exact same size which ofc means that some of the images are cut.

Second problem:
All the images converted into PDF are upside down aka rotated 180 degrees.

Version used is 4.1.2 on Windows 10 64bit