Ideally, with few exceptions, we highly recommend using orignal camera pixels instead of trying to interpolate those pixels into a larger or smaller file size. In other words do not resize your original image using your image editing software’s Image Resize tool or the the Crop Tool. It is accepatable to use the crop tool to crop your image to the print dimensions you require but do not enter a value into the resolution field in the crop tool, just leave it blank. Do all the retouching and color editing you need to do in your PSD or TIF file then save the image as a level 12 JPG to send to us. Make sure your camera’s color space is set to sRGB and your imaging editing software’s color space is set to sRGB IEC61966-2.1 and make sure you are using a correctly calibrated monitor profile. Please see our Color Management document for detailed information on monitor calibration. Once your files are ready to send, we recommend creating a new folder on your desktop into which you will COPY only the JPG files you are going to send to us. When the files are placed in their own folder on the desktop they are easier to access when you are looking for them in ROES Web. Once your order has been sent you can delete the folder as long as you COPIED (as opposed to moved) the files into it.