lavaghman, it depends on what your final product will be; i.e. are you just prining these out for home or sending to a service bureau? Personally, I always use the native CPT (Photopaint) format when ever possible as it is a non-lossy format (plus the fact that if in Photopaint you've made an "object" - masked something off and put it on a new layer - and it's in a non-square size, it will keep that transparency around the image when you import it into Draw (note, it may come in as "grouped" with the background so you'll have to ungroup it in Draw). And since you're going into Draw with these, there's no real reason to not use it. TIF is another non-lossy format, as is PSD (Photoshop). JPGs by their nature are lossy - i.e., when you put compression on a JPG file, it does things like "hey, let me see... I've got about 15 shades of blue in this part of the sky here. I don't need that many. I'll just delete about 5 or 6 of those shades of blue and replace them with whatever shade of blue is nearby." This permanently deletes data from your file - you cannot recover it. So if you're working on a JPG instead of say the native CPT file, every time you save during your tweaking process, you have the potential of deleting more and more data. You'll start to see more and more artifacting in the image, etc.