Mr Lynch, thank you for your reply.

I have confused you by not being specific. I am sorry to have wasted your time.

I AM printing the CMYK.pdf from Adobe Reader and NOT from Photoshop Elements. I mentioned that primarily to say that I have been working on my contrast/brightness...

Tools:
Photoshop Elements 2 - v2.0.2
The Hidden Power of Elements 2 book and tools installed
Free tools by Richard Lynch installed
Dell 17” LCD Monitor
Canon CP-200 4” x 6” Dye Sub Printer
Canon S500/IXUS Camera
ColorVision ColorPlus Monitor Calibration...

Sorry kiska, I didn't give you all the information. When the image is loaded into Elements 2 it is 14.4 inches x 10.8 inchs at **180ppi ** resolution. I was simply, changing the width to be 6 inches, which then changed the heigth to 4.5 inches and the resolution to 432 ppi.

Thank you for you replies.

I have tried Danny's suggestion and as far as I can see he is correct.
I couldn't see any difference using what I did and then missing out the Resize

That then means that I am puzzled by Kiska's comment

I wish to crop at 6 x 4 and print on a Canon CP-200 Dye Sub Printer at 300dpi (this is what the specs. say for the printer)

I am using Elements 2 and taking photos at 2592 x 1944. What is the best way to crop? Below is what I think I should be doing...

In the Resize>Image...