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Transparency Flattener Creates Low Res Images

Jun 17, 2013 5:44 AM

Tags: #printing #flattener #transparency_flattener

Hello all!

 

I produce a lot of vector graphics in Illustrator which I then import into InDesign. Some of my work needs to be printed and needs to follow the PDFX-1/A standard. Even with transparency flattener set to high resolution once I run the file in Adobe Acrobat for preflight it will pick up low res images, which are the result of InDesign's flattening. If I save the same image from Illustrator to a raster format (say JPG) it will stay at 300 ppi as the flattener doesn't do anything to the image.

 

Here is a screenshot showing you my settings for the high res flattener presets (which are the default).

 

http://i.imgur.com/OlpQkmG.png

I really don't see where the problem is! Any ideas?

 
Replies
  • Rob Day
    3,117 posts
    Oct 16, 2007
    Currently Being Moderated
    Jun 17, 2013 6:04 AM   in reply to Elisabetta S

    Are you exporting or distilling? When you Export are you using the PDF/X-1a preset default and choosing [High Resolution] in Advanced? Tried checking Ignore Spread Overrides?

     

     

    Screen Shot 2013-06-17 at 9.02.10 AM.png

     
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    Jun 17, 2013 6:11 AM   in reply to Elisabetta S

    How are you importing the files? Are you copying and pasting them or using File>Place?


    If copy and paste what are youf File Handling options?

     

    Is the transparency flattner preset set to something else in Illustrator?

     

    What file format are you importing, eps, ai, pdf or other?

     

    What's the interaction like with other material on your page layout?

     

    Can you have it standalone on a single page and export it ok as 300ppi flattened?

     
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    Jun 17, 2013 6:15 AM   in reply to Elisabetta S

    Are you uisng raster effects, like drop shadows, or gradients in the .ai files? What are your raster settings in Illustrator?

     
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    Jun 17, 2013 6:43 AM   in reply to Elisabetta S

    Try moving the object on to a new layer above the blue box

     
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  • Rob Day
    3,117 posts
    Oct 16, 2007
    Currently Being Moderated
    Jun 17, 2013 7:13 AM   in reply to Elisabetta S

    Can you have it standalone on a single page and export it ok as 300ppi flattened?

     

    As stand alone, I get no problem.

     

    Pages can have different transparency settings. Did you try checking Ignore Spread Overrides in the Advanced panel?

     
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    Jun 17, 2013 7:35 AM   in reply to Elisabetta S

    Keep in mind, a 300 ppi transparency flattener setting in Indesign does not always rasterize effect to 300ppi. Drop shadows could be 150 ppi, and a gradient at 200 ppi. Other than a preflight check flagging art less than 300, the art usually will be OK for print production.

     
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