Photoshop to a fixed size with guides
Because you can adjust the crop tool, unfortunately, is not a fixed size, but only a ratio is required of other solutions. To do this, you can disconnect with auxiliary lines, the fixed size, and then cut out.
- You use the selection rectangle tool (M key).
- There you have to make in the program bar, the type of tool to "fixed size". Then, you can enter the desired fixed size.
- With a click on the drawing area you will now see the frame in the fixed size.
- Then create view > New guide, four new guides that you create with the Move tool (V key) to the above created selection.
- Now you can cut as usual with the crop tool (C key) the area marked.

PS: the cut in fixed-size
Issue in fixed-size: the working area limit
Alternatively, you can also set by Changing the working area of a fixed size. This should make the best from the very beginning.
- Select in the program screen > work area bar.
- Then a new Dialog, in which you have the fixed size can be set to open. You can switch between pixels, centimeters and more.
- With a click on the OK button to confirm your input. Their work area of the document now has your desired firm size.

Photoshop: solid size free
As in the case of Photoshop, the landscape setting, read on the next page.