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Four-Color
Process File Preparation Guidelines
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Four-color process printing is used for
reproducing high quality graphics with photo quality images.
This also works well for small multi color graphics in which the
total color count would exceed seven or eight colors.
Digitally created process images should be
created in or converted to CMYK (cyan,
magenta, yellow,
black) format. Some programs, such as Photoshop, default to RGB
(red, green,
blue) format and must be changed.
*Note any color change in the image when converting from RGB to
CMYK and adjust colors as needed.
Follow the instructions below for best results
when using a scanned image within the art layout.
- Use an original continuous
tone image scanned on a high-end drum scanner.
- The scan must be CMYK at 300
DPI resolution or higher at actual print size. Most flat bed
scanners only scan in the RGB mode. Although these files
will look good on the computer monitor, the color
information will not convert correctly for a four-color
process printed image.
Both created and scanned
images must have a resolution of 300 DPI or higher at final
print size. Resolution cannot simply be increased in the
program if working from a low resolution file. This merely
spreads the original pixel information across a greater number
of pixels and does not improve image quality. (Most internet
images are a low resolution of 72 DPI.)
Scanned images cannot be manipulated. Text,
logos, borders, etc. should be created in a drawing / layout
program such as Illustrator, FreeHand or InDesign. This allows
us to make necessary adjustments to the digital file such as
adding trap.
Convert all text to paths, curves or outlines.
If this is not possible send both screen and printer Type 1
fonts used for the job being printed.
Send a copy of all
original supporting files used to create the image. When
sending Photoshop files, leave the art in layers (do not flatten
or merge layers).
Color proofs are made from the digital file and
may vary slightly from your computer monitor or color printer.
The final printed product may also vary slightly from the color
proof due to the differences between printing and proofing
methods.
Four-color process printing is for reproducing
detailed, photo type images. An image with large solid color
areas is best produced using glossy spot color inks.
Spot colors should be used in addition to the
process image when color is critical such as company logos, text
or borders. Large coverage backgrounds may also require a spot
color. All spot color information must be defined in the file
using Pantone® or Gill-line stock colors.
Image with small white text: Any text that is
14 point bold or smaller needs to be overprinted for
registration. There should not be a knock out behind this copy.
Small text outside the image area: If text
color is anything except black and the size is smaller than 14
point bold it should be run as a spot color for registration
purposes.
Black text 55 point or larger and large
coverage areas should print as spot black.
For small black text, fine lines or detail
lines within an image set black to overprint (no knock out).
Detail lines within an image.
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Sending
Us Your Files:
- Upload your file directly to our
server using the form below.
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Only the following file formats are
uploaded - jpg, jpeg, tif, tiff, eps, pdf, ps, psd, ai, gif (up
to 100mb per file) |
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