If I understand your question correctly, I would just go ahead and print them on the white paper. White can cover a range of shades/tones/hues and you will most likely be able to see what you have printed. If that\'s a concern though, you may put a box around the group of images so they are easier to find or as War Griffion said, simply use an off white or VERY light grey. Sometimes if you use something that is off white just a tad and put it on something that has really strong colors or drastic contrast, the \'off-ness\' simply disappears.