background is printing, dang

NT
Posted By
norman_turner
Jan 26, 2007
Views
402
Replies
10
Status
Closed
I don’t want the background of my images to print on a commercial offset press. Neither the cookie cutter nor crop tools do what I need to do. If I use the polygonal lasso to select the background areas and then use the background eraser or magic eraser on the selected areas, will they then not print on a commercial press? I must solve this problem or I’m sunk, so help from someone who knows commercial printing would really be appreciated.

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B
Bernie
Jan 26, 2007
Put the image on a layer, use the eraser (or better yet, a layer mask) to have transparency were you don’t want it.

Save as PSD, place in ID
DM
dave_milbut
Jan 27, 2007
cookie cutter? are you using elements? this is the photoshop forum. go back up to the product list and go to the elements forum. you’ll get better help for the product you’re using there.
NT
norman_turner
Jan 27, 2007
Thanks, Cybernetic. Helpful. But why am I saving it as a PSD when printers prefer TIFF files?

Sorry, Dave Milbut, I should have explained that I’ll have to find a way to use photoshop if elements won’t do it. A photoshop fix will work in photoshop and might work in Elements, was my thinking. Do you agree with Cybernetic on the fix?
EH
Ed_Hannigan
Jan 27, 2007
Can you explain what you are doing a little more completely, please? Are you printing the file on top of a another image? Are you using a page layout program? What are you hoping to see in the transparent area?

In printing white usually shows as the paper color. Same with transparent.
NT
norman_turner
Jan 31, 2007
I’m preparing photographs of paintings for a catalog. They are not rectangles, so parts of each image must be fixed so they won’t print on a commercial offset press. On a test proof, they did print. The images will go to a designer, who will use a page layout program. What I hope to see in the transparent areas is nothing but the paper. Hope this clarifies. Your thoughts would be appreciated.
B
Bernie
Jan 31, 2007
On a test proof, they did print

What prints? A slight, even shading. A continuation of the image as though there was no trasnparency at all.

Can you post a screen capture of an image and a scan of a print of same?

<http://www.pixentral.com>
NT
norman_turner
Jan 31, 2007
Preparing the images, I used polygonal lasso/cut to select and (I thought) get rid of the unwanted areas. The areas turned white. In the proof, they printed as a uniform, pale yellow, in contrast to the white paper, so I guess that would be "a slight, even shading."

I think I know what to do: Use polygonal lasso to select the areas (this tool works well for the purpose), then background or magic eraser to erase the pixels, thus rendering the areas transparent (I then see the checkerboard pattern). If this is correct, please confirm. If not, help!

Posting a screen capture and scan seem technically challenging. Hopefully, this description will do the trick. If not, I’ll try to get back to you with the postings you request.
B
Bernie
Jan 31, 2007
Posting a screen capture and scan seem technically challenging.

?!?!?!

Don’t take this wrong, but I supplied a link to a website that allows you to do this with very simple instructions. If you can’t manage that, how do you expect to solve your other problem (which is way more complex, technically)

The areas turned white. In the proof, they printed as a uniform, pale yellow, in contrast to the white paper

Sounds like you are using different profiles in PS and in your layout app…
EH
Ed_Hannigan
Jan 31, 2007
Make the image transparent. The method you describe will work, though it’s not what I would do.

If the layout app is going to be InDesign save the file as psd. If it is going to be Quark you will have to make a Clipping Path or make the background color the color of the paper or page background.
NT
norman_turner
Jan 31, 2007
Here’s the URL for the image in question:

< http://www.pixentral.com/show.php?picture=1mvSxFdQmCxxJMeIKi 3lVqIdgVn2f10>

You’ll see the pale yellow parts tucked in around the painting. This is what I absolutely must get rid of, so only the painting and paper its printed on show.

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