Use the blue dots to resize the image.

Use angles to proportionally resize the image.

Use the center dot at the top to rotate the image.

Once you have selected an image click on the button to open the image editing menu.

In this menu you can modify:
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Click on one of the filters to apply it.
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Click 'Horizontal' or 'Vertical' to flip the image
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Use the selectors to modify the parameters
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