About to send my flyer to be printed. Questions about dpi..

SF
Posted By
Steven_Free
Apr 16, 2004
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454
Replies
2
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Closed
I’m currently designing a 5×3 flyer set to 300dpi for print in Photoshop 7.0. I have been following the instructions from this site < http://www.psprint.com/helpcenter/preparingyourfiles/applica tions/photoshop/index_template.asp#file> on how to set it up. My question is when opening graphics/images in Photoshop to bring into my project it tells me to set the image to 300dpi and uncheck the "Resample Image" box to keep the pixel dimensions the same before bringing it into my flyer project as a layer. If I change the the image size to 300dpi and do not uncheck the "Resample Image" box and bring it into my project it’s a huge graphic/image that needs to be transformed and scaled down to the right size. When it comes time to print will the graphic/image be blurry?

Also, is there a way to check to see if all my graphics/images which are on there own layer are set to 300dpi and have the "Resample Image" box unchecked? I might have not changed all my graphics/images from 72dpi to 300dpi and unchecked the "Resample Image" box before bringing it into my project..
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Colin_Walls
Apr 16, 2004
<rant>
I have no idea who these "psprint" people are, but they need a lesson on digital imaging. They are telling you to set the resolution to 300 DPI. This makes no sense. 300 PPI, yes. [In PS it shows the words pixels/inch – giveaway really]. This sounds pedantic, but it’s important. If they get this wrong, what else are they going to screw up?
</rant>

It’s hard to sift out your questions, but I’ll try to give you some guidance. I am sure others will chip in.

First off, each layer doesn’t have its own resolution – that is fixed for the whole document. If you change it, without resampling, you change the image size. Resampling down is generally OK [making the image smaller or reducing resolution]; resampling up is potentially troublesome.

So, how big is your image in pixels.
What resolution is it set to now?
How big in inches do you want it to be?

Answer these and we’ll get you sorted.
MM
Mac_McDougald
Apr 16, 2004
While all your advice is correct, Colin…don’t be so hard on the publishing folks. "DPI" will suffice fine for communication purposes from them to us.

Heck, Photoshop is one of the last few apps that actually uses "PPI" correctly (and to my knowledge, NO current scanner interface does). Amazingly, even the fine VueScan uses "dpi"; Ed Hamrick, the author, certainly knows the difference between image and printer dots, but feels that "dots per inch" is equally descriptive of either. I don’t agree, of course; like you, I believe the use of dpi for image purposes just muddies the water further, especially for newbies. (Hence so many, "my printer prints at 1440 dpi so I need my images to be the same, right?" type questions.

But, I’ve given up the soapbox on the ppi/dpi thing; at least when dealing with printers/publishers, I just let them advise dpi (or lpi) and let it go, knowing what to produce on my end.

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