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Old 10-12-2005, 08:46 AM   #1
marlene
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Default Unshrinkable PDF

I've got a PDF I can't shrink. I'm using Acrobat 7 Pro, and have a fair amount of experience with the PDF Optimizer, but it ain't working on this file.

The client doesn't have the original source files, just a 4.4 MB PDF that she wants shrunk down to 500 KB or less. The PDF is full of huge photos (some of them may be duotones -- not sure if that's part of the problem) and the images account for about 91% of the PDF size.

I've tried setting the downsampling to as low as 60 ppi, but can't get the file size below 2.8 MB. And in the downsampled file, the photos still look sharp and clear, so they are obviously not being downsampled, at least not by much. They should really look pretty bad at 60 ppi. (Client doesn't care about image quality, only file size.)

I had no trouble downsizing this client's other PDFs -- it's just this one that is resisting me.

Any ideas?

mxh
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Old 10-12-2005, 01:27 PM   #2
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Wanna email it to me at 74727.3164@compuserve.com and I'll have a go at it with Distiller 5???

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Old 10-12-2005, 01:52 PM   #3
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Quote:
I'll have a go at it with Distiller 5
Thanks, but I already tried that. Didn't really help. Turns out the problem is that a lot of the images are duotone photos with clipping paths.

Apparently I have two options: open each page in Photoshop and downsample (easy enough with an action), then distill each page and put them all back together into one PDF; or buy an expensive third-party optimizer.

I haven't had time to do extensive research, but it looks like it would cost at least $300 for an optimizer that can downsample image masks (I assume the clipping paths are considered image masks). And I might never need to do this again, so it's probably not worth it.

I'll just have to do it the hard way in Photoshop. <sigh>

mxh
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Old 10-12-2005, 02:09 PM   #4
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>>marlene: but it looks like it would cost at least $300 for an optimizer that can downsample image masks (I assume the clipping paths are considered image masks). And I might never need to do this again, so it's probably not worth it.

Ouch!!!


>>I'll just have to do it the hard way in Photoshop. <sigh>

You have my sympathy...'-}}

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Old 10-12-2005, 04:18 PM   #5
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Some days it don't pay to get up in the mornin'. <g>

The Photoshop method isn't going to work -- there's a lot of small text, and it gets too fuzzy.

So now I'm opening the PDF -- page by page -- in Illustrator, and I think I can get it to distill down to small PDF pages but, since the type will still be vector and not bitmap, it should be more readable.

Good thing I didn't give my client a cost estimate on this project!!

mxh
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Old 10-13-2005, 12:40 PM   #6
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>>marlene: Good thing I didn't give my client a cost estimate on this project!!

I hope you charge them through the nose for this...what a pita and a half!

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