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• • November 5, 2012 at 4:18 pm #63503
    Gobit

    Member

    G'day Folks

    I'm putting together a job in Indesign with a number of security features. One of these is a hidden “This is a copy” warning which magically appears when the document is photocopied, etc. This is achieved through a combination of colour tinting and using different screen frequencies when offset-printing the original.

    Back in the day, Freehand had the ability to set object level halftone overrides. I haven't been able to find the corresponding option in Indesign. Does anyone know whether it exists and if yes, where?

    Thanks n cheers, Gobit

  • November 5, 2012 at 5:03 pm #63504
    David Blatner

    Keymaster

    The biggest problem is that many (perhaps most?) high-end printers now strip out the halftone frequency commands in PostScript, and many people print to non-postscript devices anyway. But if you're relatively sure that they're printing to desktop laser printers with postscript, then you could insert an EPS file that could probably do this.

  • November 5, 2012 at 6:16 pm #63506
    Gobit

    Member

    Thanks David

    The real job itself will be printed offset so I can control the lpi object by object when ripping it to the platesetter.

    At this stage just trying to find a quick and dirty way to initially proof the job without the expense of a wet proof. Looks like EPS is the way to go.

    Thanks.

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