My son's 3rd birthday is Saturday. I always do a banner to hang up on the outside of the house (from celebrateexpress.com). His theme is Dora and Diego, and they don't have it. I was trying to make a big poster on Costo, but it says resolution warning. I have it made, but can't upload it right.


Any ideas on how to change the resolution? Or any ideas on where I can get a banner/poster made like this with such short notice? Thanks