Tobias Reed Production Knowledge Lead at 4OVER4.COM
Tobias is our voice for cutting, binding and large format, built from the knowledge of our production team, with over 20 years in printing.
Question
What file specifications do I need for aluminum or metal products?
Answer
Aluminum and metal products, such as dry-erase signs and metal business cards, have one file requirement that sets them apart from paper products: your print-ready PDF must include a color bar at the bottom.
Why it matters and how to include it:
- The color bar gives the press a reference to calibrate against, which keeps color reproduction accurate on metal substrates
- Place it at the bottom of the file so it stays outside the finished artwork area
- Otherwise supply a standard print-ready PDF in CMYK with correct bleed
Leaving the color bar off is the most common reason a metal file gets sent back, so build it in before you upload.
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