Ask Your Question
0

CMYK colour list not available help info inaccurate

asked 2018-11-27 13:39:01 +0100

Luddite Savant gravatar image

Hi, I'm trying to create a pdf in LibreOffice Draw 6.0.6.2 and need to have the colours in CMYK format. The Help documentation says

To load a color list: 1. Choose Format - Area, and then click the Colors tab. 2. Click the Load Color List button. 3. Locate the color list that you want to load, and then click Open. A color list file has the format [filename].soc. To save a color list, click the Save Color List button, enter a filename, and then click Save. The CMYK list is optimized for print colors. The colors in the Web and the HTML lists are optimized for displays using a resolution of 256 colors. The palettes libreoffice.soc and tango.soc contain the official LibreOffice and Tango colors respectively.

but there is no 'Load Color List' button all I can see is (https://imgur.com/a/sOesu5R)

There is nothing that looks like a colour list in pick or in add pallette, & no reference to CMYK in the palette dropdown.

So it looks like the help documentation is wrong for the version I'm using - or I'm missing something. In any event how can I ensure I'm using CMYK list of colours?

Thanks

edit retag flag offensive close merge delete

4 Answers

Sort by » oldest newest most voted
0

answered 2018-11-27 20:03:36 +0100

Regina gravatar image

Last version which comes with file cmyk.soc was 5.2.7. You can download it from that source. https://cgit.freedesktop.org/libreoff... You get it on the right side with item "plain". Depending on your browser, but likely with right-click > save as or similar.

edit flag offensive delete link more

Comments

Thanks, will give that a try

Luddite Savant gravatar imageLuddite Savant ( 2018-11-27 20:17:48 +0100 )edit

@Regina In the soc file specified by you but are synonymous only RGB values in it.

ebot gravatar imageebot ( 2018-11-27 20:24:04 +0100 )edit

Yes, it is RGB. That was the reasons to not deliver the file any longer. It gives the wrong impression, that LibreOffice would be able to use CMYK.

Regina gravatar imageRegina ( 2018-11-27 20:46:36 +0100 )edit

Thanks, I understood.

ebot gravatar imageebot ( 2018-11-28 06:56:00 +0100 )edit
0

answered 2018-11-27 19:10:22 +0100

ebot gravatar image

updated 2018-11-27 19:28:51 +0100

You will not find a CMYK color palette for LibreOffice anywhere. LibreOffice works internally only with RGB values. RGB values are needed for on-screen display. Printers, on the other hand, need CMYK values because their machines can not do anything with RGB.

However, a CMYK value is only a correspondence to the RGB value. Example: The color red:

The RGB value is R = 255, G = 0, B = 0 (returns hexadecimal ff0000) and corresponds to the

CMYK value C = 0%, M = 100%, Y = 100%, Key = 0%

If I choose the character color Red in LibreOffice

image description

and Custom calls, the RGB and CMYK values are displayed.

image description

Sorry for my German UI.

EDIT_1_20181127-19.20h

Here is a hint (wikipedia) for creating PDF files that reflect the CMYK color model.

EDIT_2_20181127-19.30h

Here is a similar question with answers, maybe it will help you.

edit flag offensive delete link more

Comments

With me Windows 10, Version 1809, 64-Bit | LibreOffice, Version: 6.1.3.2 (x64)

ebot gravatar imageebot ( 2018-11-27 19:13:12 +0100 )edit

Thanks, will read through the links. I managed to find something from libre office design team too (https://design.blog.documentfoundatio...) indicating there may be a colour list which approximates well enough to CMYK to use, which ties in with your comments above.

Luddite Savant gravatar imageLuddite Savant ( 2018-11-27 20:17:09 +0100 )edit
0

answered 2018-11-27 16:49:16 +0100

Luddite Savant gravatar image

I've managed to find where the .soc files (colour list files) are stored (/usr/lib/libreoffice/share/palette) but there's no cmyk.soc file only the ones listed above, with the exception of custom & document colors. There's also .sod .soe .sog .soh files. If there's a secure source for cmyk.soc from libreoffice I can download it & put it in the appropriate folder (& hope that works), but I can't find one online.

edit flag offensive delete link more
0

answered 2018-11-27 14:35:40 +0100

BigRAl gravatar image

Under the 'Colors' section on the left (as per your screenshot) there is a Palette dropdown.

For me the second entry in the list is 'cmyk'.

edit flag offensive delete link more

Comments

I checked the Palette dropdown, these are the options here (https://imgur.com/dKkHEEO) CMYK isn't on the list, only custom, tonal, standard, html, freecolour-hlc, libreoffice, chart-palettes and document colors.

Luddite Savant gravatar imageLuddite Savant ( 2018-11-27 15:19:09 +0100 )edit

I've managed to find where the .soc files (colour list files) are stored (/usr/lib/libreoffice/share/palette) but there's no cmyk.soc file only the ones listed above, with the exception of custom & document colors. There's also .sod .soe .sog .soh files. If there's a secure source for cmyk.soc from libreoffice I can download it & put it in the appropriate folder (& hope that works), but I can't find one online.

Luddite Savant gravatar imageLuddite Savant ( 2018-11-27 16:48:35 +0100 )edit

I have no cmyk.soc file either, but I can choose the "cmyk" option.

EDIT: I just noticed you are using LO 6.0.6.2 - I am using 6.1.3.2. I do not know for sure, though, that the latter version will provide the missing colorspace: sorry.

BigRAl gravatar imageBigRAl ( 2018-11-27 17:00:39 +0100 )edit
Login/Signup to Answer

Question Tools

1 follower

Stats

Asked: 2018-11-27 13:39:01 +0100

Seen: 49 times

Last updated: Nov 27 '18