Re: Novice Needs Help
- From: Odysseus <odysseus1479-at@xxxxxxxxxxxx>
- Date: Wed, 10 Aug 2005 23:54:32 GMT
In article <1123708476.819692.227940@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>,
gretchen_duffin@xxxxxxxxxxxxx wrote:
> I have an A4 Quark document that is to be sent off to get printed as a
> 6 foot "penguin" stand. This A4 document is a template from a stand
> previously printed which turned out great.
>
> My concern is that the photos placed in the A4 document will be very
> pixelated when blown up to be a 6 foot stand. The template I used had
> photos and they aren't pixelated when printed on this 6 foot stand.
>
> How can I make sure my photos are set up correctely?
>
> >From what I understand the fonts are all vector files and should be
> fine. Do I need to save the photos as .tif or as .eps? If the
> resolution on the photos is 300 is this high enough or do I increase
> it?
Yes, the fonts and any other vector graphics should be fine at any size.
How the rasters will come out depends on the printing method. If the
page is output at 600% of its original size, the images will end up at
300 ppi / 6 = 50 ppi. That may well be enough for a coarse (e.g. 40 lpi)
silkscreen, but will very probably show 'stair-step' pixel patterns on
an inkjet or other continuous-tone device.
> It appears that the person who did this previous stand saved the photos
> as .eps, but I didn't think you could do this. I thought photos were
> saved as raster types files and .eps only applied to vector...
No: EPS graphics can contain vector artwork, raster images, or both. I
use Photoshop EPSFs a lot with QX, because since they (usually) come
with previews QX doesn't have to build its own, with the result that the
document scrolls quicker and doesn't get weighed down with preview
images.
> I'm just confused because I downsized the photos for the A4 document
> and don't understand how it can keep the quality being blown up.
Do you still have the full-size originals?
> Also, if an eps file (in my case a mask) was created using a Mac and
> you try to view it on a PC, is it normal for the file to shown up
> greyed out? This is really a pain as I constantly have to export to a
> pdf to see what the results will look like. How can I fix this? Do I
> need to open the fiel in a Mac and resave it for use on other
> platforms?
>
You'll certainly have to resave it if you want to see the preview in QX
for Windows. "Classic" Mac EPSFs usually have PICT previews, which
Windows programs don't generally understand. But you don't necessarily
need to resave the graphics on a Mac, because the preview is created
from scratch each time an EPS file is saved; for example Adobe
Illustrator for Windows can open Mac Illustrator files, and when it
saves them in Windows format it will create an appropriate (TIFF or
maybe WMF) preview from the artwork. OTOH if you don't have a Windows
program that can open the files (and the Windows versions of any fonts
they may use), you'll have to go back to the Mac to resave them.
--
Odysseus
.
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