cropping canvas size prints/pictures

thanks for your reply, let me try to explain question. I have over 100 paintings in various sizes but for example. say I have 5 paintings that are 18 x 24 in size. I take pictures of paintings. after adjusting colors I want to crop only the painting portion of the picture so the end result is only the painting and I need all 5 pictures to be the same size image and same size when printed out. the editing software that came with camera as a 5 or 6 preset cropping sizes (3x5, 8x10, etc all too small), but if I select 8x10 crop option no mater how much of the picture I select the end result will always be an exact 8x10 image. the software does not allow me to input a size to match other painting sizes. I figured corel draw or paint had a crop tool or option that would allow me to set the crop size before cropping. I guess I can manual crop as best as possible and then adjust finished crop size to what I need, but it would either stretch or shrink the image and be slightly different than original painting. hopefully this explains a little better. thanks

Hi Paul,

I'm not sure that I understand your problem.

Post a few examples.

A preset is not limited to the initial size. The presets can be used to get the correct aspect ratio.
For instance, to crop to 6x10.
Choose the 3x5 preset. Then grab a bottom corner. Keep an eye on the dimensions on the property bar as you drag the corner. You can stretch this to exactly 6x10. Then hit enter.

Again - it would help if you posted examples.

Phil