Graphics Programs Reference
In-Depth Information
Canvas Size
The
Canvas Size
is the total area that your project can occupy. It is analogous to the
Canvas
for a painting. The image has to appear somewhere inside the
Canvas
space.
When you open an
Image File
, or create a
New File
, Photoshop will create a
Canvas Size
that is equal to the
Background Layer
. To enlarge the size of the
Canvas
, select
Canvas
Size
from the
Image
drop-down menu. To decrease the size of the
Canvas
, use the
Crop
Tool
.
The
Canvas Size
can never be smaller than the
Image Size
, but it can be larger than the
Image Size
.
Increasing the
Canvas Size
is an easy way to add a border to your image. The change to the
size of the
Canvas
can be stated as a
Relative Value
or
Absolute Value
.
For borders, it is usually easiest to check the “
Relative
” box in the
Canvas Size Window
,
and enter a value for Width and Height. These values will be added to the width and height
of the image
as a border
. If the “
Relative
” box is not checked, the dimensions that you
enter will be the
Absolute
dimensions of the
Canvas
.
When you select
Image > Canvas Size
, you will see the
Anchor Grid
within the
Canvas
Size Window
.
The image below shows what happens when you click on one of the arrows in the grid.