Horizon Leveling

Often when taking photos by hand, the horizon suffers from unwanted tilting. This defect can usually be corrected by rotating the image. However, guessing at the right number of degrees to rotate the photo leads to both wasted time and imperfect results.

Zoner Photo Studio contains a unique Horizon Leveling tool. When using it, all you need to do is to visually line up a guideline against the true horizon, and the program will take care of the rest. The Auto Crop checkbox tells the program to automatically crop after rotation so that no white space arises around the picture.

You can also align photos to a vertical using this tool simply by having the guideline standing vertically.

Collinearity
Editing Perspective
Red-eye Removal
Clone Stamp
Iron
Paintbrush
Fill
Selections
Photo Edits - Retouching