Canvas

This operation is used to change image size without scaling it. The size may be reduced by cropping image edges according to a selected algorithm, or increased by adding margins of a selected color to the image. Canvas operation settings are adjusted with the help of several value boxes.
Width – enter image or margin width (depending on the selected mode).
Height - enter image or margin height (depending on the selected mode).
Relative – switch between the modes.
Anchor – this dropdown list contains all possible values of crop or margin image side.
Border Color – this dropdown list contains margin colors. The default values are transparent, black and white, but you can call the standard color selection dialog from the list. All colors selected by the user during the current session are added to the list.

Canvas operation can be performed in two modes. The first (relative checkbox is inactive) lets you work with the image itself. If the image is larger than needed, it is cropped according to the selected value of Anchor box. If the image is smaller, a border of the selected color is added to the image according to the selected value of Anchor box. If one side of the image is smaller than the needed size, and the other side is larger, the former will be equipped with a border while the latter will be cropped. This Canvas operation mode is optimal to automatically unify size of different images.

The second mode (relative checkbox is active) lets you select border size. Initial image size will remain the same, and a border is added to the image according to user-defined width and height and Anchor box value.

Example of usage

Canvas operation will help if you want to publish many images of different size on the Web and have to unify their size (reduce larger images and increase smaller ones) without scaling them.

Related topic:

• Operations before saving
• Working with Script tab