Prepressforums.com

Gausianblur · #1 (**permalink**) 08-14-2006, 12:03 PM

I started a new job some time back and just today a co-worker was looking over a job I did and was freaking out a bit because in used pictures it had an image being used like 100 times (trap of image to a rainbow like graphic) he proceeded to re-do the job., I think I have him convinced it is ok, he has never even seen the automatic trapper dialog box, always used only interactive trapping.

Now I have been using artpro since ver. 3.5 or something like that and have always used auto trap. My co-worker here was told in training not to use it, but he doesnt know why. What are the problems with it? besides the fact that nothings perfect and you always need to check your traps after made.

Just curious,

Thanks

Gausianblur · #2 (**permalink**) 08-15-2006, 05:31 PM

anyone?

LoganBlade · #3 (**permalink**) 08-16-2006, 02:51 AM

I have only use auo trap in my Detlta system. It has worked on nearly all my work. I ocasionall have a solid color box printed next to image that raps raggeddy buy for most part nice and easy. I do have a question if it applies to your auto traping?

I have 3 option to check off

Image

Object

Black

what do you check off if you have this option?

thanks

zimmy · #4 (**permalink**) 08-16-2006, 03:44 AM

I think what he means by don't use it is......if you have a image used 100
times and the image is 50 mg, your ps file could be 5g.
I also have been using since version 2 and have seen this happen.

Joe · #5 (**permalink**) 08-16-2006, 08:54 AM

I don't use Artpro but I use auto trapping in Nexus with no problems. Other than the occasional oddball but that is why we check our work.

SIMON · #6 (**permalink**) 03-19-2007, 08:18 AM

I was told when I came back from ArtPro training by some of my co-workers that, if a job is trapped up using automatic trapping and the job has spot cols, grads it will not export out as an Illustrator file correctly, where as if interactive is used it should work. It's something to do with automatic using a colour mix 'v' interactive using transparencies (ie overprints).

Studiograph · #7 (**permalink**) 03-21-2007, 05:47 AM

Quote:

Originally Posted by SIMON

I was told when I came back from ArtPro training by some of my co-workers that, if a job is trapped up using automatic trapping and the job has spot cols, grads it will not export out as an Illustrator file correctly, where as if interactive is used it should work. It's something to do with automatic using a colour mix 'v' interactive using transparencies (ie overprints).

You can change that in the automatic trapping dialgue box - 'blended' or 'opaque'.

Anyway - why would you want to convert to Illustrator? Surely that's a step backwards! :P

SIMON · #8 (**permalink**) 03-21-2007, 05:57 AM

Some of our European printers request Illustrator eps files as they don't have ArtPro, so we trap the job in ArtPro and export back to Illustrator, which can be a pain with mapped pics and spot cols converting to process, so we end up making DCS 2 files and replacing them in the Illustrator file. Does anyone else have this hassle?

Studiograph · #9 (**permalink**) 03-21-2007, 06:15 AM

Quote:

Originally Posted by zimmy

I think what he means by don't use it is......if you have a image used 100
times and the image is 50 mg, your ps file could be 5g.
I also have been using since version 2 and have seen this happen.

I don't think it will happen any more as the newer versions of Artpro will write out very small TIFFs instead of using the whole scan for each bit of trap that it creates. Plus this will only happen if the automatic trapping blending mode is set to opaque.

Studiograph · #10 (**permalink**) 03-21-2007, 06:21 AM

Quote:

Originally Posted by SIMON

Some of our European printers request Illustrator eps files as they don't have ArtPro, so we trap the job in ArtPro and export back to Illustrator, which can be a pain with mapped pics and spot cols converting to process, so we end up making DCS 2 files and replacing them in the Illustrator file. Does anyone else have this hassle?

heh! Sorry - my comment about Illustrator was slightly tongue-in-cheek.

Yeah - we get a similar thing when supplying files to some Chinese firms we deal with. Sometimes converting the files back in Illustrator takes long that actually doing the job itself (OK - Slight exaggeration!). It's annoying when you've proofed the job from the Artpro files only to then have to rip them apart again to send them out.