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

No, previous versions would only rasterize them without artifacts at some resolutions. The artifacts can still show up at other resolutions.

The problem is with the PDF creation, the tiled images cannot always be rasterized without artifacts.

Its an display error in the way Reader handles the PDF -> If you put Reader in "Druckfarbenvorschau"-Mode (Print colors preview-Mode?) the lines disappear.

And every single version of Photoshop before CS6 would correctly rasterize and display the PDFs without white lines. Thats not a Problem of Indesign or Illustrator because since PDF 1.3 was introduced these white lines are present - in every software known to man that is able to produce pdf 1.3. Even if you go the "traditional" route of printing postscript and creating a PDF with Distiller.

Summarized: CS6 import algorithm cant rasterize PDF 1.3 and the blame is shifted onto the creator of the PDF - for using PDF 1.3. Its not dependent on the tool used, there is not a single PDF 1.3 (with pictures) in existence that gets rasterized correctly by Photoshop CS6

Its an display error in the way Reader handles the PDF -> If you put Reader in "Druckfarbenvorschau"-Mode (Print colors preview-Mode?) the lines disappear.

And every single version of Photoshop before CS6 would correctly rasterize and display the PDFs without white lines. Thats not a Problem of Indesign or Illustrator because since PDF 1.3 was introduced these white lines are present - in every software known to man that is able to produce pdf 1.3. Even if you go the "traditional" route of printing postscript and creating a PDF with Distiller.

Summarized: CS6 import algorithm cant rasterize PDF 1.3 and the blame is shifted onto the creator of the PDF - for using PDF 1.3. Its not dependent on the tool used, there is not a single PDF 1.3 (with pictures) in existence that gets rasterized correctly by Photoshop CS6

Hi Jan-Philipp,

not completely true. Illustrator or Indesign, which produce most of our customer's data, isn't capable to produce an error free flattening. Instead there are those thin lines (as you can see in the samples at the beginning of this page) which Photoshop CS6 is able to reproduce in its rendering, because it is much more precise compared to cs5.
Point is, that the Illustrator / Indesign Team has to find a way to avoid this effect - and that (I think) won't be easy, because they have to re-think the whole process.
But in the end - if the customers stop flattening their PDFs everything would be fine 😉

@mwolf: That is not your fault, its the fault of the customer. Because as Mr. Cox already said many times nobody at Photoshop did anything wrong, its the way the PDFs are written because the new algorithm in CS 6 is much better than the old one. So its not an error with Photoshop, but an error in the way your client writes his PDFs. /irony off

That's the workarround I'd like to use, too. But what would you do, when your customers send already flattened data - and that's the case with nearly all jobs I get througout the day....
Earlier or later I'll have them educated to send me exclusively non-flattened data, but then again: educating customers? Not an easy thing.....

Sorry about that, didn't see that comment.
Meanwhile i make 2 pdf's as a temporary workarround: one flattened pdf for print (pdf/x1a), and one with transparency (pdf/x4) which rasterizes nicely.

I already asked for that. Take a look on my complete coment above. There Chris (from Adobe) explanes where the problem lies: it's not a bug in Photoshop, but in how the PDFs are created when there are transparencies reduced to pixels. So this "legacy mode" would be making Photoshop buggy and this they won't do (what I understand).
On all you guys out there with the same problem: keep on posting - the bigger the croud of desperate customers gets, the higher the pressure will be for them to find a solution....

I just noticed this bug exists already more than 6 months...
Perhaps adobe can add a checkbox "use legacy mode" in the import pdf dialog box and include it with the next update? It would be a great workarround for many of us i think.

Very big problem here too. I hope the many complaints get this high up on adobes todo-list. Our daily workflow completely depends on it.