I am trying to upload a business card design for my father's company. We are sending it to vistaprint.com so we can order cards. However when I try to upload it, it gives me a message saying it does not meet the required dimensions and/or the ppi is not at least 300. The business card design is 3.5" x 2.0". From what I understand, that IS the default business card size. VistaPrint has a downloadable template showing a "safe margin" so I know my design will not be cut out. However, when I resize my business card design it fits in the safe margin, but not perfectly. Vertically it is okay, but it isn't touching the left and right sides of the margin. Is this safe? I also enlarged the document size to 3.54" x 2.05" for bleeding purposes. It says to enable full bleed, but I don't know how to do this. I have bleeding enabled in Illustrator when saving it as a PDF file, but I don't know what measurements to fill in. Can someone please give me a quick rundown on how to do this? I am great with graphics and all, but printing has always been my weak spot. I really have to study about printing and how to config my files for it. Thanks in advance for the help; I really appreciate it!