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1. Re: Scaling Questions
BobLevine Aug 13, 2013 8:22 AM (in response to Sharingene)They're going to get downsampled when you export to PDF. Unless you
absolutely need them sharpened a bit then don't worry about it.
If you do, then do it in Photoshop.
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2. Re: Scaling Questions
P Spier Aug 13, 2013 8:47 AM (in response to Sharingene)You might lose some fine details during the downsampling when the effective PPI is very large, so you'll want to check the PDF.
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3. Re: Scaling Questions
Sharingene Aug 13, 2013 10:53 AM (in response to P Spier)Thanks to both of you! Okay then, l feel better about leaving them in their original sizes with just a touch of pre-sharpening to the critical details. Any guesses as to why the down sampling to PDF through InDesign seems to be doing a better job than resizing in Photoshop? -- I'm a details person and just very curious about all of this! Is it an improved algorithm perhaps?
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4. Re: Scaling Questions
P Spier Aug 13, 2013 11:28 AM (in response to Sharingene)Actually the same automatic algorithm. And downsampling generally sharpens a bit on it's own.
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5. Re: Scaling Questions
rob day Aug 13, 2013 3:49 PM (in response to Sharingene)Is there a point where Effective PPI can be TOO high?
No, so you could turn off downsampling, but you have to watch out for the printer downsampling at output. I've had jobs where an image needed more resoultion (small high contrast type) and the printer sampled it down to 300 on their end.



