It turns out that Linda's PFD color problem is definitely caused by a bug in Illustrator. it is
still present in CS4.
Linda Embeded her Greyscale images in an Illustrator file, instead of linking them. For some reason
Illustrator sees these images as IndexColor instead of Greyscale (check the document palette for
those details). When the PDF routine in Illustrator reduces the pixel count on indexed images that
are suppose to be greyscale (based on the compression settings) the image gets whacked out.
This does not happen with linked images, it does not happen with embedded images below the
Compression thresholds, and it does not happen if you re-rasterize IndexColor images to Greyscale
within Illustrator. In these cases the compression is then handled properly by the PDF routine.
So I would recommend you Link, not embed all your greyscale images for this job.
On 5/6/10 10:40 AM, Linda Feltner wrote:
> Thank you, Britt. I cannot explain "horrible" unless a total dark gray
> square with the pencil drawing so "overexposed" that it's extremely
> distorted and multicolored.
> In Illustrator, I'm just doing a label and a black ruled square in
> Illustrator and placing a jpeg behind the ruled square, showing where
> I'd crop it. I have nearly 40 illustration draft sketches. I grouped
> them to size, because in groups of 5-8 per AI document, they have the
> same code numbers, and I wanted consistency with the cropping. I chose
> the "Smallest" size pdf document because of sending them electronically.
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