Lately Illustrator has been a real pain in the butt for me at work. Usually after messing around with a setting I can fix my issue, but this one has been stumping me for a bit. I wanted to know if anyone here has had the same issue, and if so, how did you fix it?
I am currently running the CS5 suite. When I try to export to Tiff, I get these wonderful lines. When I open up the AI file in Photoshop, I sometimes also get lines, but not in the same places when using the same files. It only happens with Tiff files. Right now to get around it, I have to export as a JPG, then reopen in Photoshop and save as a Tiff. The Jpg files do not have any lines in them.
When I change the anti-aliasing from "type optimized" to "art optimized" or "none", the issue only gets worse. This leads me to believe that it has something to do with those settings.
I have used my google-fu to see if there was anything online about this. People said things about lines appearing, but it didn't sound like my situation. I checked for updates, but my version of AI is up to date. Some of the stuff I read online said that when AI is exporting, it breaks down its images into blocks, and then reassembles it. Could it be that some of the information is just getting lost?
EDIT: This appears to only happen when I place a tiff artfile underneath. I tried just drawing a black box on a layer underneath and then exporting, and no lines appear. It doesn't matter what art is placed underneath though, the lines always appear in the same place. It almost looks like the vector shape is dissappearing, allowing me to see the artwork underneath. When I placed a predominantly purple piece of art underneath, the line turned purplish.
Any help would be GREATLY appreaciated!
Illustrator is as buggy as the Amazon. Seems you have found one.
In the meantime, try exporting to a non-lossy format instead of JPEG. PSD and PNG are my top picks. You can also open your Illustrator file in Photoshop and let that program rasterize your file instead.
Sometimes when I open the file in PS, the lines disappear, and sometimes they appear in different places. I just tried exporting as a PNG, and the lines appear there. As for PSD, it says i dont have enough memory to export it at 300DPI. Thanks for the try.
instead of exporting--try saving as PDF (unflattened)--then--if you really need a tif--open PDF in Photoshop and save as tif--the lines you are getting are 'stitch' lines from flattening the art--if you go to outline view in illustrator (control+Y on PC, apple+Y on mac) you will probably see that there is a text frame right where the line(s) are.
in your illustrator document
select all--type convert to outlines-DO NOT SAVE-then export your tiff--then just close illustrator without 'saving' so your original file will be intact--lines should be gone from tif
So far nothing has worked. Sometimes when I follow the advice in here, it will make the one line disappear, but then another one will appear in a different place. Rather than use Jpgs, I have started to reopen the underlying art in photoshop and place the vector balloons and sound effects in Photoshop as a smart object, then flatten and export. This seems to work.
Tman's PDF approach almost made me think it was going to work. When I opened the PDF in Acrobat, it looked perfect, but when I opened the PDF in Photoshop, the lines returned.
Thanks everyone. I think I've wasted enough time trying to fix the problem. My work around works and I can just build it into my "assembly line".
It seems that I encountered the same problem in exporting tiff format from Illustrator CS5.
I tried to make different adjustments to the export options, but no luck.
I observed that the lines were caused by an bottom layer, a gradient filled object.
The only thing that worked was to rasterize just the gradient object then, export the file as .tiff.
After the export, an undo command would bring the .ai file back to the unrasterized version.
Hope it helps.
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