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[OM] Re: [OT] Printing Advice

Subject: [OM] Re: [OT] Printing Advice
From: Willie Wonka <alienspecimen@xxxxxxxxx>
Date: Thu, 10 Feb 2005 17:28:22 -0800 (PST)
OK,
Another dumb question: how do you get to the resampling image box?
I am in the image size box and in it I see pixel dimentions and document size.  
I started by adjusting the size to 5X5cm, the resolution in the document size 
box was set at 72ppi by default.
The size of the picture originally was 8.04MB.  After this first part, the 
pixel dimentions box tells me that my file was reduced to 58KB.  Then I go and 
change the 72ppi to 300ppi (still at 5X5) and the file 'swells" to 996KB.  
It looks like it has been resized automatically, do I still need to adjust 
sampling?
I did some experiments:
Printed it at 72, 150,300 and 800 ppi (the last one was 6.92MB) and the 
pictures looked better as I increased the resolution...I did alignment and 
cleaning, it did not help.
It just looks coarse, like from an older or cheap printer, you know what I 
mean, you can see the dots...
I also experimented with printing a 5X5 picture, which I scanned at 2400X1200 
on my CanoScah D1250U2F.  Looking what PS tells me it is whooping 70.4MB(?), 
but it shows resolution of 2400 ppi and I am having hard time digesting 
this...Originally I started telling you this, because this picture was printed 
with outstanding results...
If you got any ideas, let me know, I need a brake...
Boris

Moose <olymoose@xxxxxxxxxxxxxxx> wrote:
Willie Wonka wrote:

>Nevermind, I found it:
>Image/image size...
>I adjusted it to the 5X5cm size I needed and specified 300 pixels per inch and 
>the result was the same as before. 
>
You can't specify both size and ppi without resampling. Unless you have 
the Resampling Image box checked (PS), typing in either size boxes or 
ppi box will simultaneously change the other.

Think about it logically. If you have an image 300 pixels wide, at 300 
ppi, it can only be 1 inch wide.

Generally, you are better off just specifying the image size and letting 
the ppi fall where it may. Even if the ppi is too low and the image 
needs upsampling, the printer driver will generally do this as well or 
better than the editing software, since it knows just what the printer 
needs. Just be sure to pick the highest quality option in the driver.

Moose



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