New Post: Losing transparency with CMYK

timpeters wrote:

1. that it should? do most CMYK images contain an alpha channel? I'm more of a developer and not an true image guy so there are pieces that I miss.
   

I don't think it should contain an alpha channel. But I have no good answer to your other question. It's the same question as if you where asking me if most images contain an alpha channel. I don't know the answer. There are CMYK images that have an alpha channel (CMYKA) and CMYK images that don't have an alpha channel.

timpeters wrote:

1. if it did contain an alpha channel, would this not be an issue?
   

Then we would have to figure out how we can extract the alpha channel with Ghostscript from a CMYK image. Our current code does not support CMYKA images, it just threats them as CMYK.