TYPO3 Core

If the PHP exif module is available, TYPO3 uses exif_read_data to evaluate the exif tag Orientation of an uploaded image. Also ext:indexed_search uses exif_read_data to extract the exif tags COMMENT and ImageDescription which is the added to the indexed content.

If the PHP exif module is not available, a possible Orientation exif tag from uploaded images created with modern camera systems is not respected, which leads to the problem, that width and height of uploaded portrait images may get saved wrong to TYPO3 FAL.

TYPO3 should therefore recommend to install the PHP exif module.