>>1119151Now that's something that I CAN help with.
Your phone saves the correct rotation in the metadata but 4chan strips this from jpgs. You can get around this by rotating it then saving it as a png or by using an image editor that physically edits the image itself like Irfanview (uncheck 'Keep original EXIF data' and check 'Reset EXIF orientation tag'). Don't use the Windows built-in photo viewer as it merely sets the rotation in metadata.