How to convert CMYK to Pantone?

I have a document with 10+ images that need to be 2-color, black and a Pantone ink. (These are not duotone images; each one is grayscale with certain parts of the image colored in the Pantone ink. Think of a grayscale face with red lips.) I first converted these to grayscale and then selected a Pantone ink color and colored parts of the image using the paint bucket, etc. However, my printer said that they cannot print these from my 2-color InDesign document because the images are CMYK and that Photoshop cannot separate two colors unless you use Duotone. I don't want them duotone as only certain parts of the photos should be colored. The only solution I know would be to insert the gray images without color into my InDesign document and then try to color them with the InDesign tools, which would be really difficult. Please help! There must be another way.

You can do this a few ways. Your best would be to create a grayscale doc with the black ink, and then in the channels panel flyout menu (to the right of "channels"), create a new spot color. Assign it the Pantone number by clicking on the little square to the right of "color" and then the color libraries button. Paint in that instead. If you need the ink to be overprinted by black then it should be quite simple. Otherwise, you can use the black channel to knockout parts of the spot by ctrl-clicking on the black channel, inversing the selection, and then filling with white.
If they balk at this file saved as a TIF (with "spot channels" checked when you save) or PSD, you can go to image > mode > multichannel, and try saving it as a DCS2.0. The printer might have better luck with this (but try TIF or PSD first).
If the printer can't handle a file like this, your next bet is a CMYK file where the black channel holds the black in values, and the C, M or Y channel holds the spot values. Then anything else in the layout file that should be spot needs to be painted C, M or Y.

Similar Messages

How to convert CMYK to RGB programmatically.

Hi,
I have a CMYK colorspace in indesign, i want to convert that as RGB color space, I got some codes, but I am getting incorrect data.
Some of the codes which I tried are given below
        double cyan = 35.0;
        double magenta = 29.0;
        double yellow = 0.0;
        double black = 16.0;
        cyan = Math.min(255, cyan + black); //black is from K
        magenta = Math.min(255, magenta + black);
        yellow = Math.min(255, yellow + black);
        l_res[0] = 255 - cyan;
        l_res[1] = 255 - magenta;
        l_res[2] = 255 - yellow;
@Override
    public float[] toRGB(float[] p_colorvalue) {
        float[] l_res = {0,0,0};
        if (p_colorvalue.length >= 4)
            float l_black = (float)1.0 - p_colorvalue[3];
            l_res[0] = l_black * ((float)1.0 - p_colorvalue[0]);
            l_res[1] = l_black * ((float)1.0 - p_colorvalue[1]);
            l_res[2] = l_black * ((float)1.0 - p_colorvalue[2]);
        return (l_res);
The values are C=35, M = 29, Y = 0, K = 16 in CMYK color space and the correct RGB values are R = 142, G = 148, B = 186.
In adobe indesign, using swatches we can change the mode to CMYK or to RGB.
But I want to do that programmatically, Can I get any algorithm to convert CMYK to RGB which will give the correct RGB values.
And one more question, if the alpha value for RGB is 1 then what will be the alpha value for CMYK?
Can anyone help me to solve these issues... Thanks in advance.

All you have to do is loop thru the swatches and change the space to RGB. Below is an AppleScript, but it shouldn't be too difficult to come up with the equivalent JavaScript. Your document's assigned RGB space will determine what RGB space the CMYK converts to, so if you are looking for sRGB, then Edit>Assign Profiles...>Assign Profile: sRGB
tell application "Adobe InDesign CS3"
tell document 1
repeat with a from 1 to count of every swatch
try
set space of color a to RGB
end try
end repeat
display dialog "All swatches have been converted to RGB color"
end tell
end tell

How to convert CMYK files to K only (C=0 M=0 Y=0) for print, PDF and JPGE

I have a Jpeg image in grayscale and I need to print it in K only (while CMY=0) instead of CMYK. I have tried with channel mixed presets and even though the info on screen is now C=0, M=0, Y=0 and K= various values, when I send it to print. The printer still prints with all the CMYK colours so instead of a clean monochrome colour I get yellows reds and blues.
Any advice would be so much appreciated!
M

Hi Gustavo,
Thank you for your email. My non-human printer is a cannon CLC 5151 and the funny thing is that it does print in black sometimes.
I have a psd document with C=0 M=0 Y=0 K=various which I have created with the channel mixer presets. - I sent it to print and = 4 coloured grey result
I open an indesign document and place this very same file (plus others with the same presets with which I create my composition) - I send it to print and = black only
Then, I say great it's printing on black so now I just need to export this composition as a JPEG
So I export it and when I send to print = 4 coloured grey
The is when I realise that the C=0 M=0 Y=0 and various K pressets I originally created have been lost again on this JPEG.
I come back to indesign and export a PDF and I find that my original presets to black only are now divided into CMYK colour again.
Perhaps the channel mixer presets are only a guide and they are not preserved when I import the document anywhere else, but I wonder How come this psd document prints in 4 colured grey despite what you can see on the info?
I have tried to paste the image into the black channel of a new document but I can't save it as a JPGE nor I can place onto an indesign either because it doesn't recognize the colour mode.
I agree with you in that it's nicer to get a greyscale with 4 colour ink but only if the printer is properly calibrated and ours isn't at all. and I need to present both indesign and JPEG prints and they should be looking the same.
M
Saludos desde Londres

Pantone 2196 C how to convert to CMYK it is not in CS6

Pantone 2196 C how to convert to CMYK it is not in CS6

Pantone 2196 C is one of the 336 new Pantone solid colours that were introduced in 2012.
http://forums.adobe.com/message/5361284
The Lab values for this colour are 39 -18 -52. If you're using the appropriate CMYK profile for your printing conditions, you could make a new Process Colour swatch using those Lab values, and it will automatically convert to CMYK.

How to convert PMS colors to CMYK?

I am not an Illustrator user but need to know how to change PMS colors to CMYK colors in an AI file. It would also be helpful to know how to change the colors as well as how to convert them. Thanks in advance.

Thanks Scott. I actually figured that out just after posting. I am a Photoshop
and Lightroom user who has never opened AI before today. I just needed to
modify an AI file that a designer created for me. My apologies for the dumb
question.
Joel Pickford
PICKFORD PICTURES
1920 N. Echo Ave
Fresno, CA 93704
(510) 386-1506
http://joelpickford.com/

Spot-to-CMYK conversion: Pantone vs. ID

I know this is not a new issue, and was discussed here, but more from the point of view of the visual aspect of colors on one's screen.
I'm baffled as to the conversion of spot colors for printing purposes (sheet-fed).... My client wants me to use PMS 322c in a CMYK job, and she's been always very picky about colors and the way they print. The difference in the conversion formulas between ID and using Pantone's website -- is striking.... See how ID has a significant amount of M, yet low K, while Panton suggests ZERO M and lots of K.... So I'm asking, WHO CAN I TRUST???....

Part of the “problem” is that of how you actually represent the Pantone spot colors. Yes, Pantone provide CMYK equivalent values, but in exactly what CMYK color space? According to what I have been told by Pantone, those CMYK values are nominally SWOP.
You didn't indicate what your full workflow looks like, but the most reliable method of dealing with spot colors, whether used as real spot colors (i.e., you actually have those spot color inks at the press) or you are simulating them, is to pass through the spot color information in the PDF file exported from InDesign or at least as LAB colors otherwise. Preferably, you are using a PDF/X-4 workflow.
Bring in the swatch at follows:
The swatch will then look like:
When you export PDF, you have two choices. If you are actually printing spot color or if you don't know whether real spot color inks are available, set the Ink Manager as follows:
In this case, the RIP will use the spot color if available or if not, it will convert Pantone's more precise LAB color values specified as the “alternate color space” to the press' CMYK color space.
If you know that the press definitely won't have the spot colors, set the Ink Manager as follows:
On PDF export, all references to PANTONE 322 C will be output to the PDF with the exact LAB color values which your RIP will convert to CMYK and no references to the spot color at all.
This is the method getting precisely what Pantone defines for the spot colors and how they will look in process color.
Note that many Pantone spot colors cannot precisely be matched in process color simply because such colors are outside the gamut of whatever process CMYK color space your printing workflow supports.
- Dov

3 Adobe Programs give me inconsistent numbers when covert to CMYK from Pantone Pantone+ Solid Coated?

3 Adobe Programs give me inconsistent numbers when covert to CMYK from Pantone Pantone+ Solid Coated?
I need help on figure out how to have exact number value when I use 3 programs, Adobe InDesign CS6, Illustrator CS 6,
And PhotoShop CS 6, and use PMS Swatch from Pantone+ Solid Coated in each program, and convert Pantone Color to CMYK,
the numbers are different significantly. I attached the example of how I converted PMS 424C to CMYK to illustrate.

In CS6 and later the conversion of Pantone+ Solids to CMYK is color managed (Lab to CMYK), so the document's assigned CMYK profile and the app's Color Settings Conversion Options (Intent and Black Point Compensation) affect the conversion numbers and have to be matched up.
So below the assigned profile is Coated Fogra39 with a Relative Colormetric Intent and BPC turned on (the slight differences are because of the way the 3 programs round):
I think InDesign has a problem with color conversions via the Color panel, so I'm showing the InDesign Sep Preview panel with All Spots to Process checked in Ink Manager on the right. Changing the document's CMYK profile assignment doesn't reliably produce the correct conversion via the Color panel—looks like a bug and I haven't checked CC to see if it's been fixed.
Here is what I get with a conversion via the Color panel. l'm not sure where these numbers are coming from but it's not the right conversion to Fogra39:
The tool bar's Color Picker does make the correct conversion, so I think the problem is limited to the Color panel
The simplest approach is to leave Pantone Solids as spot colors and use Ink Manager to make the conversion when you export or print.

'Convert CMYK Colors to RGB' still runs havoc in 9! (Plus a PDF version problem)

This post is to warn people about severe issues, and how to avoid them. Issues with the CMYK color setting in FM9.x have been reported here earlier, such as:
http://forums.adobe.com/message/1237696#1237696
http://forums.adobe.com/message/1237852#1237852
http://forums.adobe.com/message/1237165#1237165
However, I do not think this issue has been warned about anywhere near as much as it should have. And, as usual, Adobe is silent (they should have a big poster on their site warning about this issue! And they have even claimed that patches have "solved" the issues with CMYK).
Just recently, while experimenting with FM9 again, I had extreme problems, which, at first, seemed totally unrelated to this CMYK setting. But after having struggled extremely hard for many many many hours, I finally found out. Now is the time to inform others:
First a note about versions: FrameMaker 9.0p237, Acrobat Distiller 9.1, XP SP2
It looks perfectly okay on screen in FrameMaker, exactly as in FM8. But when saved as pdf, several things are "corrupted". Examples: no kerning after the letter 'T', such as the word 'Text'. Dotted leader for a right aligned tab disappears. Some objects from the master pages, such as a logo, become enclosed in a rectangle (a border of the frame/object), but it only happens on *some* body pages, whereas other body pages using the same master page are ok!!? Equations are formatted differently from the way they should, with the wrong font for number, etcetera.
Solutions:
1. When 'Save as PDF...', untick 'Convert CMYK Colors to RGB' in PDF Setup. Same setting is in the file's 'Format > Document > PDF Setup...'
A drawback with this method is that, as of Acrobat Distiller v9, it does not seem to respect the pdf version specified in the PDF job Options! I get PDF 1.6 with this method, despite my job option specifies version 1.5. (This happens also with FrameMaker 8 if Acrobat is v9.) So you *have* to optimize it in Acrobat in order to get a web friendly PDF (PDF 1.4 or 1.5).
or
2. Print to 'Adobe PDF'.
In this latter case, you can set the same 'PDF Setup' settings under the button 'Setup...', EXCEPT that there is no tick box for 'Convert CMYK Colors to RGB', and it does not matter what setting you have chosen in the file's 'Format > Document > PDF Setup...', it will be RGB conversion in any case. Make sure that after you exit the setting, the tick box for 'Print to File' is NOT ticked! This method respects the pdf version specified in the PDF job Options! I get PDF 1.5, which is what my job option specifies.
(For some reason, Acrobat/Reader does not render these two PDFs exactly the same, except in extreme magnification! Maybe it has to do with the different PDF versions of the files.)
In either case, the solution actually solves ALL problems I listed! Despite it seems to have absolutely nothing whatsoever to do with colors! Some day in the distant future, CMYK might actually work! But, for myself, I would prefer a proper color management instead...
Best Regards,
/Harald

Oops!! Not until now I discover that under 'Solutions' I happened to write 'untick' where it should be 'tick'! I.e, colors SHOULD be converted to RGB in order to circumvent the problems! I.e it runs havoc in v9 when CMYK colors are NOT converted to RGB! Don't know how I came to write the opposite, but probably I started out by describing the situation where the problems are seen rather than describing how to avoid them.
Equally strange is that nobody corrected me, but perhaps the mistake was so obvious? (But whether you see problems or not might depend on what fonts you use. So, under certain special circumstances, CMYK might actually work without these reported problems.)
I am also a bit surprised that others haven't reported the issue that the PDF version set in PDF job Options isn't respected when using 'Save As PDF' and Acrobat 9? (Or maybe someone has, but I have missed it.)

Convert CMYK+SPOT (only selected bands) to RGB

Hello,
My context:
I am dealing with multi-band TIFF files - CMYK + one or more SPOT colors.
I am able to read the multi-band TIFF file using JAI and read the number of bands correctly.
Also, I can read the value for any band for any pixel.
For the SPOT colors I have Pantone CMYK equivalents.
The bands are 8 bit in size.
My problem:
I need to be able to show/hide one or more bands and display the result.
Is there a (mathematical) formula for converting CMYK+SPOT color bands to the RGB color space?
A simple example:
(CMYK scale 0-100)
All bands: C, M, Y, K, SPOT1 (C=100,M=100,Y=0,K=0), SPOT2(C=100,M=0,Y=100,K=0)
Bands selected: C, M, SPOT1
PixelX values: C = 50, M = 10, SPOT1=80
Can we calculate PixelX's RGB values to display on screen?
Is there any documentation I can read anywhere on the subject?
Thanks in advance,
Georgi

While I have never tried it, you might find this interesting: [cmyk to rgb|http://bytes.com/topic/java/answers/16180-rgb-cmyk].

Convert CMYK PDF file to Grayscale - Acrobat X

Can someone please tell me how to convert a CMYK PDF file to grayscale.
I am using Acrobat Pro X on Windows XP.

Thank you very much. Was looking for the solution recently.
Notice that there are Convert Options to preserve Black: v Preserve Black | v Promote Grey to CMYK Black
Cheers, Egils

Converting CMYK color model vlaues (0-100) to liquid color volume using labview

Hellow all,
How I can convert CMYK color model vlaues (0-100) to liquid color volume using labview?
best regards

What does "liquid color volume" mean?
You should continue in your original message thread and not create a new one. CMYK colors mixing icon or vi

How do I match a pantone color in Photoshop

I need to match a pantone color in CMYK for a shape I need to print can someone help

Adobe Photoshop contains support for the PANTONE COLOR BRIDGE libraries. PANTONE COLOR BRIDGE is the physical guide which displays a side-by-side match between PANTONE solid colors, and explicit CMYK simulations, including the CMYK values used to print the Guide. These explicit CMYK values are provided within the PANTONE COLOR BRIDGE libraries.
Adobe CS6 contains native support for the updated PANTONE PLUS SERIES versions of PANTONE COLOR BRIDGE, with the exception of the 336 newest PANTONE colors launched in April 2012. To access the 336 newest colors for Adobe CS6, or for older versions of the Adobe suite, the libraries can be exported from PANTONE Color Manager software, which is provided free of charge with purchase and registration of any PANTONE PLUS SERIES product. Details of how to obtain and use PANTONE Color Manager software can be found at http://www.pantone.com/pages/pantone/pantone.aspx?pg=21054&ca=12. You can also e-mail Pantone support directly at [email protected]
Best regards,
John Stanzione
Manager - Technical Support
Pantone, LLC

How to convert class file

Hi all, I am new in java card development.
This is my environment setting:
@echo off
set JC_HOME=C:\JavaCard\java_card_kit-2_2
set JAVA_HOME=C:\j2sdk14103
set PATH=.;%JC_HOME%\bin;%PATH%
I have created the Wallet applet according to 'Zhiqun Chen" text book and named it WalletApp.java.
I have compiled this file to a class file.
This is where is I saved my file
C:\JavaCard\java_card_kit-2_2\samples\src\com\sun\javacard\samples\WalletApp\WalletApp.java.
But I don't really understand how to convert the class file.
May I know what is this for?
-out EXP JCA CAP
-exportpath
-applet 0xa0:0x0:0x0:0x0:0x62:0x3:0x1:0xc:0x1:0x1
com.sun.javacard.samples.HelloWorld.HelloWorld
com.sun.javacard.samples.HelloWorld
0xa0:0x0:0x0:0x0:0x62:0x3:0x1:0xc:0x1 1.0
must save this in what file?
I tried to type in the command line below (and the result):
C:\JavaCard\java_card_kit-2_2\samples>converter -config scr\com\sun\javacard\sap
les\Wallet\Wallet.opt
error: file scr\com\sun\javacard\saples\Wallet\Wallet.opt could not be found
Usage: converter <options> package_name package_aid major_version.minor_ver
sion
OR
converter -config <filename>
use file for all options and parameters to converter
Where options include:
-classdir <the root directory of the class hierarchy>
set the root directory where the Converter
will look for classes
-i support the 32-bit integer type
-exportpath <list of directories>
list the root directories where the Converter
will look for export files
-exportmap use the token mapping from the pre-defined export
file of the package being converted. The converter
will look for the export file in the exportpath
-applet <AID class_name>
set the applet AID and the class that defines the
install method for the applet
-d <the root directory for output>
-out [CAP] [EXP] [JCA]
tell the Converter to output the CAP file,
and/or the JCA file, and/or the export file
-V, -version print the Converter version string
-v, -verbose enable verbose output
-help print out this message
-nowarn instruct the Converter to not report warning messages
-mask indicate this package is for mask, so restrictions on
native methods are relaxed
-debug enable generation of debugging information
-nobanner suppress all standard output messages
-noverify turn off verification. Verification is default
*********************************************************May I know What is the correct command line to convert the class file and what must I do to before converting the class file?
I saw some article saying we must use JDK1.3, is it a must?
Your solution is highly appreciated.
Thank you!

Hi Ricardo,
I saved the file below as WalletApp.opt in the directory of scr\com\sun\javacard\samples\WalletApp
-out EXP JCA CAP
-exportpath c:\javacard\java_card_kit-2_2\api_export_files
-applet 0xa0:0x0:0x0:0x0:0x62:0x3:0x1:0xc:0x2:0x1 WalletApp.WalletApp
WalletApp 0xa0:0x0:0x0:0x0:0x62:0x3:0x1:0xc:0x2 1.0
But I still have the problem below:
C:\JavaCard\java_card_kit-2_2\samples>converter -config scr\com\sun\javacard\sam
ples\WalletApp\WalletApp.opt
error: file scr\com\sun\javacard\samples\WalletApp\WalletApp.opt could not be fo
und
Usage: converter <options> package_name package_aid major_version.minor_ver
sion
OR
converter -config <filename>
May I know What's wrong with my command or file?
Where can I download JDK because what I can find is J2SDK.
Thank you!

How to convert string to 16 characters.

My external unique id is too long, more then 30 characters.
How to convert it to 30 characters using sql?

You should find another extranal system id in order to mantain uniqueness, but you could also use the name field (that supports 50 characters), but it deppends of which entity you are using.
Which is the entity? and...if the only way to insert data is by web services the you could use more than one field to verify uniqueness since you can query more than one field at the time.
Hope it helps
Kim.

How to convert Web app into a channel?

To whom it may concern,
Does anyone know how to convert a Web app into a channel inside the Portal server 6.0?
I developed the web app and tried to create a provider and a channel for it, but the Portal server did not recognize the WEB-INF folder and give me errors saying that it couldn't locate the class files.
I also have a problem with URL inside my jsp page (channel).
For example, I have two jsp pages:
/etc/opt/SUNWps/desktop/default/MyCustomProvider/test1.jsp
/etc/opt/SUNWps/desktop/default/MyCustomProvider/test2.jsp
and when I try to put a link from test1.jsp to test2.jsp using
... and make a channel based on test1.jsp. The channel will display the link as "http://mydomain/portal/test2.jsp" and result in "Error: page not found". I want the link to point to
/etc/opt/SUNWps/desktop/default/MyCustomProvider/test2.jsp
To summarize my questions,
1) Where should the web app be located in the Portal server?
2) How to make a link inside one jsp page (channel) to point to another page inside the same folder?
Thank you in advance

Hello Karthik,
I just tried to solve my problem with your suggestions, unfortunately, my JSP channel still doesn't work :(
The portal server keeps reporting "Server Error..." when I tried to add query at the end of the href.
Do you still have any other suggestions?
Thank you

How to convert CMYK to Pantone?

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