Technical data

36 Manipulating Images
You can also crop an image to any selection region, no matter what
shape, as defined with one of the selection tools (see above).
Make a selection using one of the selection tools and then choose Crop
to Selection from the Image menu. For example, here’s cropping
applied to a marquee drawn with the Freehand Selection tool:
PhotoPlus always crops to a rectangular image. If the selection region is
non-rectangular, the left-over surrounding region will be either
transparent (on a standard layer) or the background color (on the
Background layer).
Tip: To convert the Background layer to a standard layer, right-click
Background on the Layer Manager tab and choose Promote to Layer.
Now operations on the layer’s content (such as moving, cutting, or
irregular cropping) will leave transparent “holes.”
Flipping and Rotating
Flipping and rotating are standard manipulations that you can carry out
on the whole image, the active layer, or just on a selection.
To flip, choose either Flip Horizontally or Flip Vertically from the
Image menu, then select Image, Layer, or Selection from the
submenu. If you flip an image horizontally, be careful not to
accidentally reverse things like text, numbers, and so on.
To rotate, choose Rotate… from the Image menu to open the Rotate
dialog. Set the rotation angle (90, 180, or 270 degrees, or enter a
custom angle) and the direction (clockwise or counter-clockwise).
Select Image, Layer, or Selection and click OK.