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o_caino

Member

Registered: 2013-06-06

Posts: 167

[SOLVED] mupdf 1.16.0 incorrect CMYK rendering

Hello,
Since upgrading mupdf a couple of days ago from version 1.15.0 to version 1.16.0 the rendering of CMYK colorspace is wrong.
Here you can compare the same CMYK document viewed with version 1.15.0 and viewed with version 1.16.0

Downgrading solves the problem, of course

Is this an upstream bug or something?

Thank you very much.

Last edited by o_caino (2019-08-02 17:22:08)

progandy

Member

Registered: 2012-05-17

Posts: 5,322

Re: [SOLVED] mupdf 1.16.0 incorrect CMYK rendering

mupdf 1.16 implements ICC profiles. Try to toggle them with Shift+E.

Edit: With 1.16.0 you have to enable them after loading a pdf, as of 1.16.1 ICC profiles are enabled by default.

I don't know what exactly changed between 1.15.0 and 1.16.0. Was it just that mupdf silently used ICC profiles, but now it is a toggle that was disabled by default?

Last edited by progandy (2019-08-02 16:30:49)

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| alias CUTF='LANG=en_XX.UTF-8@POSIX ' | alias ENGLISH='LANG=C.UTF-8 ' |

o_caino

Member

Registered: 2013-06-06

Posts: 167

Re: [SOLVED] mupdf 1.16.0 incorrect CMYK rendering

Thanks progandy

I just tried your solution and it works, I also compiled the 1.16.1 version just to check, and everything is back to normal.
We'll just have to wait until the repos are updated.

Thanks again.