images prepress

Artwork Submission Guidelines

 

1. Supply up-to-date hard copy

The latest Hard Copy, (Lasers, Proofs, Mock-ups..) provides us with a guide to follow for image content, placement, verbiage and type styles.

 

2. Supply all fonts (printer and screen)

  •  Postscript Type One or Open type fonts are the preferred formats
  • True Type and Multiple Master fonts can have inconsistent results when printing, (reflow, font substitution..)
  • Do not stylize font in layout program. For example, don't apply Bold, Italic....unless you supply the Bold and Italic screen and printer font for that type face.
     

3. Check for naming inconsistencies

  • Colors should be named consistently throughout the job. For example, if there is art colorized in Illustrator "Pantone 485 CVU" and it is used in the same Quark document that has type colorized "Pantone 485 CV," Quark will, in effect, separate this as two different colors.
  • Delete any unused colors from your document's color pallets and any unused items from the pasteboard. If your job prints 4/c process only, please make sure all spot colors are removed or turned off - including linked Illustrator files.
     

4. Beware "hairline rules" usage

  • Do not use "Hairline Rules" option. Output resolution determines Hairline thickness. Therefore, use .25pt instead of Hairline. This will create more consistent results when printing.
     

5. Image Requirements

  • All images should be supplied as CMYK as opposed to RGB. The data in a RGB image, which is saved as a 24 bit file, has a color gamut of 16.7 million colors. The CMYK color gamut of the same image is considerably smaller, containing only Several Hundred Thousand colors. Simply put, CMYK can not reproduce every color that RGB can. Therefore, it is advisable to convert your images to CMYK BEFORE color correcting them and running color lasers.
  • Final image resolution for CMYK and Grayscale images should be at least 150 dots per inch (dpi). The key word here is "Final." For example, if you have an image that is 300 dpi in Photoshop, you might think that is high enough resolution, but if you place that image in Quark at 200%, the "Final" resolution is cut in half to 150 dpi.
  • Final image resolution for Bitmap images should be 1200 dpi.
  • When supplying images saved with "Clipping Paths", save them as "eps" and not "tiff" files.
  • Density for all images should not be more than 320%. This means that in the darkest shadows of an image, the sum of all color percentages should not equal more than 320%. Any higher density, is likely to cause more time on press. To adjust this setting in PhotoShop, go to the 'File' menu, scroll down to 'Color Settings' then click on 'CMYK Setup' in PhotoShop 5.5 or click on 'Separation Setup' in PhotoShop 4.0. Adjust maximum density by using the 'Total Ink Limit:' box.This should be done BEFORE converting to CMYK.