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pre-press proofs
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design colour
resolution Resolution for images should be set at 300 ppi for print and 72 ppi for screen based working. Although 72 pixels per inch is now not the standard for monitors, it remains the web standard.
RGB red, green, blue
blue
magenta
cyan
300 ppi would relate to 300 dpi in prbgm% ] replacing pixels for dots, which this image represents in both senses. Set up as 300 ppi in Photoshop which printed in 300 dpi.
white red
yellow
green
This image is 72 ppi which is used for screen based images. Setting the resolution so low has negative effects on the image as shown here.
The above diagram represents the additive colour mode. Showing the primary colours of rgb, and the colours produced when these primaries are mixed. Due to the additive process, the more colour is overlapped the lighter it becomes until white is achieved.
The above image shows pre-press proofing of a single page in CMYK.
The above image shows pre-press proofing of a single page in black and white.
The page would be printed on the stock that would be used in the final publication. This would enable the client and printer to understand the look and feel of the finished product, including colour, body copy and imagery. Enabling any further amendments to be made.
Again printed on the stock that would be used in the final publication. Although this page is solely black, indicated by the colour swatch at the bottom of the page.