Exporting Images with Alpha Channels as Masks for Pagelayout

[Daniel_G]

I need an export format which contains Alpha channels or Layers as masks in i.e. Indesign to switch masked parts on an off in imported images (like cropped product shots with background or not, depending on the layout).

 

I've tried TIFF, PNG and PSD - but none of these will provide any kind of Alpha channel in Indesign, unless I use TIFF with the initial Layer active. Then I see the Alpha option in Indesign, but the masked part of the image is already transparent and cannot be made visible.

 

Please send me an urgent solution as we have to place many images in Indesign Layouts with this feature.

 

Daniel 

[Daniel_G]

Looks like no one actually works with InDesign or Quark around here  :(