Yea 1/4 size is the normal. Mine was actually all vector data so I could have made 6cm x 3cm and it would have scaled fine. But if you are working with images try for 600dpi and if you can 1200dpi then your image will be perfect also don't for get to take crops and bleed into consideration, so a 1cm bleed becomes 4cm, your printer will tell you what bleed you need. Also don't forget to save your images as a .tiff of a .pdf with tiff compression rather jpg as jpg is lossy and tiff is lossless. |