A sideways photo and a slightly tilted horizon need different controls. This tool fixes orientation in quarter turns, but it cannot straighten a two-degree tilt.
Quarter-turn rotation changes orientation by 90 degrees at a time. A horizon tilted by two degrees cannot be corrected with these buttons. The crop rectangle removes edges but does not rotate the image by a custom angle.
A photographed document may also have perspective distortion: the far edge appears shorter than the near edge. That requires a perspective correction, which this tool does not provide. Retaking the picture with the camera parallel to the page is a practical alternative.
Keep the original. JPG and WebP exports are re-encoded, so inspect fine text after saving. Crop and Rotate is useful for orientation and framing, not every kind of geometric correction.
It turns a picture in quarter turns and flips it. That fixes a photo that is on its side or upside down, which is the common case when a phone ignored the way you held it. It does not turn a photo by a few degrees.
For a photo that is only slightly tilted, you can hide the problem by cropping in, so that a crooked horizon or wall is cut away at the edge. It is not a true correction, and a very tilted picture will lose a lot of its area that way.
No. The current controls support quarter turns only.
No. It removes edges without remapping a trapezoid into a rectangle.
Press Turn left or Turn right twice. Two quarter turns make a half turn, which puts it the right way up.