PhotoPlus X6 User Guide - Serif

To change canvas size:
1. Choose Canvas Size from the Image menu.
Manipulating Images 101
2. Enter New Width and/or New Height values (the current values are also
shown for comparison). Alternatively, select the Relative check box to
enter the number of units you want to add to the existing width and height
values—for example, 5 pixels, 1 cm, 100 points, 10 percent, and so on.
3. In the Anchor box, click to position the image thumbnail with respect to
edges where pixels should be added or subtracted. For example, if you want
to extend the canvas from all sides of the image, click the centre anchor
point.
4. Click OK.
If the canvas size is increased, the new canvas area is filled (on the
Background layer) with the current background colour and (on
standard layers) with transparency.