I created a template on the computer to print the relevant information on the certificate (with everything lined up perfect). I printed one package of certificates and then opened another package and printed them. Only after I printed the entire second package did I notice that everything didn't line up! WARNING: each package is not printed exactly like another - the lines are off. I just wasted $15 ($5 for a new package and $10 for 2-day shipping to get it in time).