Use APKPure App
Get PicGizmo old version APK for Android
Fotos spiegeln / drehen und in der Größe ändern
This app is for Flipping Vertically/Horizontally, Resizing and Rotating Picture. And Save it :)
This is an easy way to fix your wrong orientation of Photo.
You can also resize easily when you want to upload to your blog or something with the limited size of the image.