You have a couple of options for rotating elements:
Offline editors or advanced online editor
Manual Rotation:
When you select an element, a small blue ball (or two arrows in a ball shape) appears above it. You can click and drag this blue ball with your mouse to freely rotate the object to any angle.
Exact/Snap Rotation:
- Go to the Object Menu > Rotate.
- Here you can rotate exactly 90 degrees clockwise or counterclockwise.
- For a custom angle, you can select "free rotation," which pops up a window where you can type in the exact number of degrees you want it to tilt (this option is available for the offline software only).
Instant editor (simple creation) and App:
You can rotate exactly 90 degrees clockwise or counterclockwise through the Edit image menu.