Illustrator 10 save as PDF causes linked file stroke weights to revert to original 4-point weight

I’m working in Abobe Illustrator 10 and have the following problem. I’ve created a 40-square, 18” x 18” game board as an .AI file. Some of the images on the board squares repeat and I’ve created these images as independent .EPS images. These images are 5-6 times larger than the range of sizes needed on the game board to give me some latitude for size transformations. I use File | Place with the Link box checked to place the images as needed on the game board, and the Transform palette to resize them as needed.

This all works fine, looks OK on the screen, and prints OK as a tiled image to my Color LaserJet 4550. The problem is that when I save the game board as a .PDF file, the stroke weights of the linked images revert to the original 4-point stroke width I used in the original .EPS files for the individual logos.

I’ve used Edit | Preferences | General and checked Scale Stroke & Effects both in the main .AI game board image and in the individual logo .EPS files, but this doesn’t help (once again, this is only a problem with the save as PDF process).

Finally, immediately after the save as .PDF completes, the game board looks fine on the screen, but as soon as I close the file and reopen, various of the logo images show with original 4-point stroke weight, which is much too heavy relative to the resized images.

Has anyone encountered and come up with a solution to this one? Everything saves fine in PDF format except for the linked file/stroke weight issue. It would be nice to solve this because the two print shops I’ve dealt with seem much more familiar printing from a single .PDF file rather than a collection of .EPS files.
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Sigurdur ArmannssonConnect With a Mentor DesignerCommented:
Are the .eps files originally from Illustrator?
Have you tried to open one or two .eps pictures in Illustrator and copy the content over to your working file and then make a pdf?
snebelConnect With a Mentor Author Commented:
Yes, all EPSs were created originally in Illustrator.

I was initially reluctant to try the copy technique because of course the whole point of linked files is that you can make a change to the linked file and have the changes propagate to all linked instances in other files. But I gave it a try and it worked in a way that I didn’t anticipate.

I opened the game board file, then opened one of the image files. I did a Ctrl+A to select the whole image, then Edit | Copy. I then switched to the file and did an Edit | Paste. I used the Transform palette to move the image into an open area of the board and scaled it to roughly the size of similar instances of the image.

Then I did a File | Save As and saved as Board.pdf. The problem of the stroke weight reverting hadn’t been apparently until the file was closed and reopened. So I closed Board.pdf and reopened it. Miracle. Not only were the stroke weights on the copied image OK, but the stroke weights on all the other linked images were OK as well.

Hard to say what is going on there. To further test, I deleted the copied image from Board.pdf, then saved and closed it, then reopened it. The stroke weights for the other images were still OK. It was as though the copy of the one image had set some internal switch in Board.pdf.

Finally, I reopened and did an immediate Save As PDF. Theoretically, this should have resulted in the original problem, because I hadn’t saved as after copying an image in and then saving it as Board.pdf. But it didn’t. It saved as a perfect PDF.

So the copy image technique seems to have solved the problem, but I have to confess I’m still trying to figure out why.

The perfect solution would be to find out how to do explicitly via the interface, but short of that, copying in a single image seems to do the equivalent. In any case, copying an image seems to cleared something in the program and fixed the problem.

So thanks for your time and suggestion, which in my opinion counts as a solution to the problem. I’m puzzled but happy.
Sigurdur ArmannssonDesignerCommented:
There is one thing you might want to add to your arsenal:

Paste your artwork (which used to be as eps) into the While it's still selected add a new layer, name it properly (hold down the alt key while you click the New Layer button) and then grab the little colored square in the Layer panel and move it to the new layer.
Now you have your artwork on a separate layer. You can do this for every of the eps you need.

If you then need to edit it you can easily lock  or hide all other layers while editing.

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snebelAuthor Commented:
Thanks again. I'll take all the weapons I can get.
Sigurdur ArmannssonDesignerCommented:
"So thanks for your time and suggestion, which in my opinion counts as a solution to the problem. I’m puzzled but happy."

How about closing this question?
One way is to select the stroke and go to object expand stroke, or in the save pdf options, try to check or uncheck the Preserve Illustrator editing capabilities
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Sigurdur ArmannssonDesignerCommented:
The author, snebel, say in ID: 34099421:

„So thanks for your time and suggestion, which in my opinion counts as a solution to the problem. I’m puzzled but happy.“

This is a reply to Sigurdur Armannsson's ID: 34098132 and should be valid for the points.
Sigurdur ArmannssonDesignerCommented:
The author, snebel, say in ID: https:#a34099421:

„So thanks for your time and suggestion, which in my opinion counts as a solution to the problem. I’m puzzled but happy.“

This is a reply to Sigurdur Armannsson's ID: https:#a34098132 and should be valid for the points.
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