| You're in luck.
Photoshop has a tool that will do exactly what you want. It's called (conveniently enough) the Crop Tool.
Select it from the Tool palette. I beleive the location varies depending on which version of Photoshop you are running, so check Photoshop's HELP and search on "crop" or "cropping" to be sure.
Among its options are the ability to pre-size an image, say, 8"x10" or 55cm x 180cm. You can also set image resolution if you like, for example, 200 PPI or 250 PPC (pixels per cm).
Once the image size specifications are set, you drag the tool (like the rectangle selection tool) and select whatever portion of the image you want.
You can adjust the size as many times as you like. Double-click to crop.
Use the ESC key to "exit" from the crop dialog (to make the crop marks disappear if you change your mind); hold down CTRL to prevent "snapping" to Photoshop's grids.
Hope this helps; good luck with your cropping.
~DannyR~ |