I have a png file that I edited in the GIMP to make the background transparent. I used "Color to Alpha". When I try to pdf:make-image it, I get the error that alpha channel is not supported. In the cl-pdf mailing list archive, I see that Marc said that alpha channels are not supported but transparency is.
How can I modify my png to have a transparent color without using the alpha channel? Thank you. Mitch Berkson _______________________________________________ cl-pdf-devel site list cl-pdf-devel@common-lisp.net http://common-lisp.net/mailman/listinfo/cl-pdf-devel
