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Flattening Issues Preflight Help!
Hi there, im new to this site, and have been doing digital prepress 6 months for a small printing company here in Minneapolis. I was wondering what you people use to preflight flattening issues. I was just having a problem today where an image was showing up on screen with the proper transparency with the overprint preview off as well. Well when I send it to the Digital Press it still prints out a white box around the image that should be transparent. We only received PDF Files so I cant try reflattening out the native document. We really dont use any preflight software here, but I was wondering anybody might have any ideas of software that could check for any problems with that? I just tried converting the doc to CMYK (there were 3 spot colors in the document) Im sending to the press to see if that resolves it, but im not sure if that will work unless I convert it in the native format before flattening. Well anyways just wondered what you pros do about this issue.
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