I love what I do, and I honestly can’t think of anything I’d rather be involved in than creating graphics for shows of all kinds. Many of the projects that come in for production are already created and technically ready for press. My job is to take a look at the structure of the files that are going to press. I check to make sure the art has enough data (ie: resolution so that it prints properly). I check for aspects like file format, color mode and last but not least document set up.
Document set up, in simplest terms, is the deciding factor that dictates if you’ll get a 30′x20′ backdrop if that’s what you want. Lately I’ve found that some designers are struggling with proper file set up .This may be caused by the fact that many graphic programs and computers have limits on document sizes and amount of data that they will push through. This said, a method I’ve found, that has not failed me, is to set up my art at 1/4 scale. If you desire a 20′x30′ backdrop for instance, set up your file (photoshop) 90″ x 60″ at 300 PPI-(pixels per inch)- This will give us a perfect 20′x30′-75ppi file to work with (at size) and a backdrop that will print perfectly.
I’m using 75ppi as an example of a good minimum resolution. You can give your files more resolution if your computer system will handle it. I’ve found that 150 ppi at size is the most you should ever need to assign to any art file for it to print well.
I hope this helps.