[magick-users] alpha channel ImageMagick and FPDF... Ghostscript maybe?

[pere roca]

dear all,
I have just moved from GD to imagemagick. i was using FPDF to incrustate
images generated from GD  in PDFs  but now it doesn't work with imagemagick
; it complains about alpha channel.

FPDF doesn't support alpha channel. The strange thing is that it worked for
GD, so I suppose that by default ImageMagick creates PNGs with alpha
channel. I have tried to remove it using  "convert 'file.png' -depth 0
'no_alpha.png'" without success ("FPDF error: 16-bit depth not supported:
download/new2.png").

So I'm wondering if I have to move to Ghostscript; someone knows if alpha
channel is supported there? is Ghostscript easy to work with?

thanks!

Pere
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