Legacy ImageMagick Discussions Archive

I see. What happens if you directly convert to JPG or use PNG as intermediate format? Maybe the problem is related to PSD (no experience with it). convert 1.jpg 1.jpg color.psd[2] -background white -alpha remove test.jpg convert 1.jpg 1.jpg color.psd[2] -background white -alpha set test.png convert ...

Have you already tried

convert test.psd[0] -background white -alpha remove test.jpg

I doubt this will help, but try putting -colorspace CMYK at the very end before the output.

...but it does. Works with 'black' now too!!

Many thanks!

Because CYMK is one of the supported color spaces. I write on a ConTeXt module, that uses IM to create drop shadows of squared areas (boxes). If someone needs to create CMYK only documents (no prepress step with proper color conversion before printing), this is the only way to go.

Without a 'comma' in the arguemnt +level-color assumes the color is both the balck and white point, and thus replaces the whole image with that color. This is exactly what I want. I tried to 'replace' the color, but '+level-colors' was the only working method. The idea behind it is to do the shadow...

Thanks for the quick reply. Tested with all combinations and the result is the same. I have added a comma after the color to fit the requirements. As I understand it, the same color is also used for the white point, if none is given. The '-shadow' created graphic is unicolor (here always full black)...

The following code works here for colorspace 'gray' and 'rgb', but fails for 'cmyk'. The final graphic is empty (no shadow) in the later case. If I use a different color than black (e.g. '+level-colors red') things work ok even with cmyk. This (shortened and simplyfied) code is taken from an automat...

This works, but there are better ways to create such a PDF (e.g. ConTeXt).
size: (210mm/25,4mm*150) x (297mm/25,4mm*150)

I get the same results here. Also tried a two step conversion, but '-page a4' always blows up the graphic to canvas size. You should give 'sam2p' a try, which is mentioned here [search for 'Image to PDF converters...'] http://www.imagemagick.org/Usage/formats/#vector I guess 'sam2p_pdf_scale.pl' sim...

Just did a manual check of the PDF in emacs (prior was preflight with Adobe Acrobat). The icc profile is part of the IM generated PDF. Even the generated thumbnail graphic has embedded it in its stream (graphic and profile in one object). The /ColorSpace of the document is set to /DeviceRGB. Looks l...

I checked the test image and the PDF documents for embedded icc profiles.

jpg, AI and PS: ProPhoto RGB
IM: no profile

So it seems, that IM (GhostScript) has stripped of the profile.
A quick search showed, that icc profile support was introduced in GS9.0. Is your version older?

I agree, PDF is the best format for printing.

Anyhow, I doubt that IM (GhostScript) can do the same as Illustrator. But we will see...
Can you post a link to a test picture and its IM/Illustrator PDF export then?

Is this question just academic? I can't see a reason to use PDF here instead of a pure graphic format, like JPG or PNG with embedded profile. Where is the benefit?

I noticed some PANTONE spot colors in the PDF. Donno if IM is supporting this. pdf:SpotColor-0: PANTONE Blue 072 CVC pdf:SpotColor-1: PANTONE 7506 C pdf:SpotColor-2: PANTONE 873 C pdf:SpotColor-3: PANTONE 7421 C I only found a page, where the corresponding RGB values are listed ( http://goffgrafix.c...

I guess the font in not embedded and ghostscript is not able to access the local Helvetica font somehow. You can test it with the 'pdffonts' tool, which is part of Xpdf ( http://www.foolabs.com/xpdf/download.htm l) pdffonts foo.pdf and then look in the 'emb' (embedded) column for the Helvetica font....