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Old 05-06-2009, 07:32 AM   #6
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Originally Posted by Ronald View Post
The maps are all vector graphic PDFs (aside from the JPEG one with the Acrobat elements added on top). For instance, the document setup for one particular map is it at roughly 10"x11". This map will be used as both a large fold-out (at about 10.5"x12") and inside the visitors guide (at about 7.5"x8.5"). At this point, I've been just placing the vector map PDFs, with little concern over their original sizes, into InDesign and rescaling the placed versions.

So given these specs, would you suggest I open the vector PDFs in Photoshop (in effect, rasterizing them) at 200 resolution, scale them to actual print size (making separate versions for both the large fold-out map and the smaller visitors guide), and save them as TIFFs or PDFs? If so, would the rasterization make any difference, or could I simply rescale them in Illustrator and keep them as PDFs (without compressing line art, of course)?
I am going to get out of my depth with specifics — maybe Don Arnoldy will pipe up here.

Yes, make separate output files for each illustration in the layout, cropped and scaled to fit.

The vector PDFs with type converted to outlines can be re-scaled in Illustrator. These can be .ai or .eps files. (Keep the source files as they came to you.)

What is the JPEG one? The large map? What are the non-vector elements?

In any event, if you do need to rasterize, for print work use 300 dpi at the final (print) size (not 200 dpi). Or ask your printer what output linescreen he will use. As a rule of thumb, multiply that number (which might be 133) by 2 (which equals 266 dpi), and deliver an image of at least that. Be sure to start at the correct size, then calculate the lpi.

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