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In school I was instructed to always use PDF x-3 2002 when printing a poster (I think so that we be compatible with the school plotter). Does that setting ensure colors stay the same when printed/best printing quality?
I am having a hard time getting rid of those thin white lines that show up on Adobe PDFs sometimes and it looks like if I save my file with a different PDF format I can get rid of those lines. But I want it to print well with accurate colors, is PDF x-3 2002 the best? Or can I use the "high printing quality" option with good results as well?
Thanks.
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Always ask the print service provider what works best with their environment.
The white lines are caused by transparency flattening that happens when saving to PDF/X-1 and X-3 and certain display options in Acrobat respectively options in the RIPs used for printing.
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Okay thank you!!
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PDF x-3 2002 is pretty outdated. It may have been recommnded "in the day" for a specific print situation, but there hasn't been a printer that couldn't handle the newer standards (pdf 1.5 and up) for many years now. The current best approach is to export PDF X-4.
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I wouldn't send a printer an X-4 without prior asking them if they have an APPE and have it set up correctly.