P: PDF import show edge artifacts on tiled PDF images (bug in PDF creation)

No, because then the other bugs in the old PDF rasterization come back, and the overall quality of PDF rasterization goes down, rasterization would be much slower, AND it wouldn't even fix the problem - it would just make it less obvious and appear at different resolutions.

CS5 and earlier had the same problem with these files, just at different resolutions, and sometimes less strong of a line.

But it would be a very better solution to change Photoshop CS6 back to the way CS5 handled PDFs. So just one app must be fixed and not dozens of other ones....

You'd have to resave your PDF file without whatever options caused the program to tile the images and cause the artifacts.

Please read the previous responses.
Yes, the problem still exists in the application that wrote the PDF file. Until that gets fixed in that other application, the PDF files will not be rasterizable at different resolutions.

Again, this is not a bug in Photoshop. You are talking about a bug in the applications that created the file. Photoshop is just showing the problems that already exist in your PDF file.

...and?
just because the problem was there a version ago, you could now let us alone and not fixing a BUG? REALLY???!?!?!?!

... or you tell us please a workaround that we can continue our work. Because we have to open PDF's in Photoshop and we want them without this white lines, ok?

Sorry Cris, but all your answers dont help anybody. You still repeat that the error was there also in previous versions at different solutions and so on...

But the MAIN PROBLEM STILL IS HERE. Because with other versions we could work with pdf's that be became from our clients and NOW WE CAN NOT ANYMORE. OK?

So i think is really time that you and your team start helping your PAYING customers to get back on a working system.

Or am i wrong?

AGAIN: The lines are not due to a bug in rasterization, but a bug in the way the image data is written in the PDF file. I haven't had time to read all the PDF/X specifications to see if the file lies with it, or with the way the images are tiled by applications. But the way the images are tiled will lead to artifacts when rasterizing at resolutions less than the original document resolution.
And without understanding the root causes, I don't know how the documents can be fixed. As soon as we know more, we'll let you know.

Chris,
What you have written is frightening. Do you try to tell us that PDF/X-1a:2001 standard is broken from the very beginning? I hope you are aware of the fact that you ruin the theory (industry fact) concerning the thin lines visible in Acrobat are only its rendering BUG. In my earlier response (above) I wrote that if the users were not sure whether the lines really exist they opened the PDF file in Photoshop and then the lines disappeared in most cases (99%). Today you say we were wrong and our method was wrong. I suggest that Adobe should inform the users that the PDF/X-1a:2001 standard is faulty and it cannot be trusted as well as it cannot be verified in any way. Should we understand it in this way?

How do you see further work on this BUG (llustrator, InDesign and others Quark, Corel)? Will the repair concern the standard PDF/X or transparency flattener?

I hope that all the users will get info from Adobe about what they should do with the PDF/X-1a:2001 files. I think you should consider the global campaign attempting to inform all the users about this serious BUG.