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- Choosing the arbitrary option opens up a smaller window with:
- A field to input the number of degrees.
- CW/CCW selection. Unless you know exactly what number of degrees you wish to rotate the canvas, then you don't access this menu.
- If, on the other hand, you want your canvas rotated such that certain lines in your document become either the horizontals or the verticals, then under the tool palette you choose the ruler tool. Access this tool either by clicking and holding down on the eyedropper tool, or navigating the menu: Analysis > Ruler Tool.
Once you have this tool selected, draw along the lines in your document that you want to make horizontal or
vertical with the tool like shown below.- When you are done, select the arbitrary option and Photoshop will tell you the degrees of the line you just
drew. By doing this, you are telling Photoshop to rotate your canvas in the same direction and same amount
of degrees as the line you just created with the ruler tool. - Once you press OK, this is how your canvas will look. Note that the axis Photoshop chooses as default for
rotating is the bottom left side of your page.
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