Re: grayscale settings for offset printing
Re: grayscale settings for offset printing
- Subject: Re: grayscale settings for offset printing
- From: Marco Ugolini <email@hidden>
- Date: Wed, 21 Dec 2005 01:32:34 -0800
In a message dated 12/20/05 1:47 PM, bruce fraser wrote:
> At 12:00 PM -0800 12/20/05, Marco Ugolini wrote:
>>
>> If you need to enlarge the file, export the TIFF file the usual way (it will
>> be "postage-stamp" size, as you describe it: one pixel per grid location).
>> Then open it in Photoshop. Go to Image -> Image Size: choose "Nearest
>> Neighbor" in the "Resample Image" pull-down menu, set your width as desired,
>> leave the resolution at 72ppi, then click OK. Your image will be enlarged
>> with no antialiasing. Each of the patches will carry exactly its original
>> value, with perfectly sharp edges.
>>
> A better way (it keeps the file size smaller and rules out any
> possibility of interpolation issues) is to go into Image Size,
> UNCHECK Resample Image, and set the resolution to, say, 8 ppi.
>
> Bruce
Hi Bruce.
True. I did not think of that. After all, a low image resolution has no
adverse effect on the correct printing of these color patches. They will
print just as well even at 1ppi, for example!
Thank you.
--------------
Marco Ugolini
Mill Valley, CA
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