Overprint Indesign
- Started
- Last post
- 28 Responses
- hellobotto0
My hypothesis comes back to my original point that Overprinting is a printing technique and Multiply is a screen effect.
- hellobotto0
If you are wanting to create the effect you're demonstrating in your Multiply example, but with overprinting, then you have to accept this print production technique (like playing with dot gain) might not offer you a shortcut. You have to deliberately create artwork to generate your end result.
This goes for anything related to creative problem solving. In order to execute any concept, grand or small, you have to work within the limitations of the processes propelling the activity. Assuming Multiply will translate on press is foolish, consulting with a pressmen and knowing Multiply will translate on their presses is being a smart designer.
One last thought. Take a step back, and replace Multiply with Difference. Both of these effects live in the same family, they are blending effects. Should we expect to be able to replicate "Difference" with etched plates on a 4/C press?
- BaskerviIle0
Firstly, as has been said, overprinting is not an effect, it is simply letting the transparency of the ink show through when overlaid, combining to create colours on the printed page, rather than before printing inside the computer.
An overlay will tell the computer what colour to make, then this will be printed as a simulation of that colour, but the printer won't print solid colours on top of each other to make it.In your diagram above, I think the reason you have a double stroke around the right hand cirlce is an issue of trapping. Trapping is the 'safe zone' that printers build in when two colours are going to sit side by side. Since it is almost impossible to align two blocks of colour side by side (you either get an overlap or a white gap) printers take the attitude that deliberate, controllable overlap is better than a white gap. The navy blue inner circle shows the overlap or trapping between the cyan and magenta plates.
- trapping normally is 0.088 mm, not 6 points as the line in the above example?stewart
- the printer WILL print solid colors over each other in overprinting. This explanation is confusing even ME because it might be wrongmonospaced
- stewart0
the above multiplied objects give a perfect color seperation in the PDF output preview after exporting to a fullcolor PDF from InDesign.
anyone with an example where this multiply effect really goes wrong when bringing the document to print? i'm still trying to sort out why I shouldn't use multiply.
- Talk to your printer and/or get a proof. If Multiply works for you, then that's great and now you know for surehellobotto
- monospaced0
@stewart
Over printing inks is not equivalent to multiply, so it's really pointless to talk about them like they achieve the same effect, or to say that one is illogical and unpredictable. Some inks are naturally more opaque than others, so results in real overprinting do vary in many ways, including the stock you're printing on. hellobotto got it right up there.
- I know, I know, but somethimes the outcome is really illogical. Problem is that I can't explain the examples that good in English.stewart
- monospaced0
Use multiply if you're not overprinting! This is getting ridiculous.
Overprinting is LITERALLY printing one color over another. For example, printing a spot light blue over black, or vice versa. Sometimes that color does well on top of black, which is NOTHING like multiply.
Multiply is a filter popularized in old-school photoshops, and then in Photoshop. It just adds the color values together on screen and creates a new color. It's something you use to get that desired effect, but it should never be confused with or compared to overprinting.
- climbatree0
wow just wow, i'm a junior and the lack of understanding of this is amazing, i was explaining over print stoke for a die lie the other day to another junior and their all like, i don't really need to do that its just to make the file perfect and tidy arrgggg. who teaching these people?
- sorry rant over, says the know it all junior, i know all love them haclimbatree
- Gnash0
good link here that discusses Multiply vs Overprint:
http://colecandoo.wordpress.com/…