Creating PDF gives white surface

[7Peet7]

I'm creating a small concept poster for a party.
I'm doing this in InDesign CS with images that are created in Photoshop. The poster is a 2-color print.

Now, when I export to PDF or print to PDF, the created file shows a large white surface where there should be an object with some transparancy.
If I put the option "Overprint preview" on, the file shows correct. And in the layer separation, I can see that the 4 CMYK-layers are blank and 2 spotcolors contain all the drawing-data.

How can I avoid the white surface in the normal view? And is it normal that the CMYK-layers are still in the layer separtion when there is nothing on them?

You can find the pdf on

http://users.pandora.be/claes_peet/xXx_2004/Affiche_A2.pdf

Thanks for the help,

Peet

 

[jimoblak]

Try exporting to something other than Acrobat 4. If you do not have an Acrobat Reader greater than 4, download a new free reader.

- - picklefish - -
Why is everyone in this forum responding to me as picklefish?

 

[7Peet7]

Thanks Jimoblak for your reply, but it doesn't work.
It doesn't matter if I export to Acrobat 4, 5 or 6. They all got the same result.
I'm working with Adobe Acrobat 6.0 Professional.

Any other suggestions?

Peet

 

[notsavvy]

Did you try flattening the transparency (pre-flight check)? Sometimes this white box where the transparency is supposed to be is due to the transparency not reading correctly when optimized for a newer version of Acrobat. You should flatten your transparency--let me know if that fixes it