Full Bleeds in printing

Words that strike fear in my heart: "Please cut to a full bleed". My first thought is, "Please let it be an InDesign fully-packaged file" because then I can make sure the bleed will cut correctly by a little editing. Generally it's not, if I'm having a good day it's a pdf and if it's been a tough day it's two M$ Word files (or every once in a while an Excel file).

I don't really want to get into the desktop publishing thoughts right now, that's been addressed before. Today we're talking about bleeds and how to design for them. I understand the desire to have the ink run to the edge of the paper, whether it's a photo or a solid color or just lines, it adds an attractiveness to the brochure. For today's discussion let's assume a double-sided, full-color, tri-folded brochure. The following still applies to postcards, one-page flyers or any bleed that you want, but double-sided, tri-fold adds another level of front to back registration that will look bad when trimmed incorrectly.

If you're making one copy for a proof prior to printing, or for a class project it's not too difficult to hand cut to an edge or a point. When you're printing several copies the entire stack is cut with a large blade that is hydraulically powered. Normally we can cut 300 sheets of paper at a time, if we're working on gloss paper, we will cut 100 - 125 at a time, if you're doing 1000 flyers that's a lot of cutting. The paper will shift ever so slightly as we cut, the ones on the top are sliding forward so you get a slight shifting toward the bottom of the stack. If the bleed is designed correctly this is not a problem, but if it's an edge, such as a photo abutting white, you will see a small white line on some of the prints. A bleeds goes pass the edge of the final paper so as the shift occurs the top and the bottom print will look exactly the same even if there's a slight difference in size.

If you have space a full .25 inch pass the edge is best, we can get by with .125 inch but it can be tricky. Also if you have text, don't run it to the edge, unless you mean for it to be cut, leave a little room for the blade to fit and the margins to look good.

I know this sounds like a complaint, but actually it's a case of wanting the final product to look right. Most time without prior planning it doesn't because of that small bleed. The time to talk to your printer about your design and how the final is going to look is on the front end, not after the entire thing has been designed and left no room for error.