Problem when converting RGB to CMYK in illustrator CC

Today I realized I had my document in RBG mode rather than CMYK. I am drawing die lines over a CMYK TIFF file placed in the document. When I try to convert my illustrator document color mode from RGB to CMYK everything in the document goes white - including the CMYK TIFF file that I have placed in it.
I can highlight the paths and see them only when they are highlighted but Illustrator will not allow me to select a new color for them.
In older versions of Illustrator I have had it would seamlessly convert to CMYK without changing everything to white.
I tried creating a new document with CMYK color mode and pasting the items in and it still goes all white.
In illustrator CS3 it converts just fine from RGB to CMYK with no image loss and no color loss on my dieline paths. but because my version of CS3 is acting crazy it won't allow me to save files from it
any help appreciated!!
thank you so much

hi monika!
no they are just plain old paths in black. and the TIFF file is just a regular TIFF file that is being placed on the bottom layer.
thanks for any help!!

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Rich black when converting RGB to CMYK

I'm working in an older version of PhotoShop (7) but any help on the topic would definitely help.
My problem is that I am converting RGB native images to CMYK and my Key (Black) comes out rich, contains equal levels of CMY and K, instead of true black, only k.
Currently my way around this is to do the standard convert to profile CMYK and with my path selected to the section I would like to be true black simply turn off all CM and Y channels and re-save the image but this is a little labor intensive.
Is there a way that I can go straight from RGB to CMYK and achieve true black without alteration?

Yes, there is. You can use a CMYK setup or ICC CMYK profile that uses Maximum black generation. Unfortunately, that will almost always hose anything photographic in your image.
Is it typographical elements that are becoming four color? If so, then they should be done in a page layout program where they can be rasterized separately from the photographic image. If it is type you're worried about, is it large type or small? If you have to set large type in Ps, then it's probably fine to let it run four color.
If it were me and I had to do everything in Ps, I would probably make two conversions of the file to CMYK - one with a standard black generation and one with Max K. I would then select the black you want from the max K version and paste into the K channel of the "normal" document, and then use that as a selection to delete from the other three channels.
A third way is to do type in Ps and leave the type as a vector type layer, then save the file out as a Photoshop PDF, which is then placed in a layout app. or just sent to the printer through his RIP. That should work too, but there are too many places for things to wrong for my taste.

Problem when converting colors to cmyk using fixup

The problem is in the fixup -> colorspaces -> Convert colors.
It seems "Rendering Intent" is in fact always relative, although e.g. perceptual is selected.
Am I doing something wrong?
If not, Is there a solution or work around?

hi monika!
no they are just plain old paths in black. and the TIFF file is just a regular TIFF file that is being placed on the bottom layer.
thanks for any help!!

ICC profile to convert RGB to CMYK,   jpeg is ok, png format have a problem

When I use ICC profile to convert RGB to CMYK, jpeg format is ok, but png format have a problem.the color is lossy.
It means, the png file color is shallow than jpeg file after convert.Could anybody help me?
thanks
source code
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.Iterator;
import javax.imageio.IIOImage;
import javax.imageio.ImageIO;
import javax.imageio.ImageTypeSpecifier;
import javax.imageio.ImageWriteParam;
import javax.imageio.ImageWriter;
import javax.imageio.metadata.IIOMetadata;
import javax.imageio.metadata.IIOMetadataNode;
import javax.imageio.stream.ImageOutputStream;
import org.w3c.dom.Node;
import com.sun.image.codec.jpeg.ImageFormatException;
import com.sun.image.codec.jpeg.JPEGCodec;
import com.sun.image.codec.jpeg.JPEGEncodeParam;
import com.sun.image.codec.jpeg.JPEGImageEncoder;
public class TestImage {
     public static void main(String args[]) throws ImageFormatException, IOException{
          BufferedImage readImage = null;
          try {
              readImage = ImageIO.read(new File("C:\\TEST.jpg"));
          } catch (Exception e) {
              e.printStackTrace();
              readImage = null;
          readImage = CMYKProfile.getInstance().doChColor(readImage);
          writeImage(readImage, "C:\\TEST_after_.jpg", 1.0f);
    protected static String getSuffix(String filename) {
        int i = filename.lastIndexOf('.');
        if(i>0 && i<filename.length()-1) {
            return filename.substring(i+1).toLowerCase();
        return "";
    protected static void writeImage(BufferedImage image, String filename, float quality) {
        Iterator writers = ImageIO.getImageWritersBySuffix(getSuffix(filename));
        System.out.println("filename�F"+filename);
        if (writers.hasNext()) {
            ImageWriter writer = (ImageWriter)writers.next();
            try {
                ImageOutputStream stream
                    = ImageIO.createImageOutputStream(new File(filename));
                writer.setOutput(stream);
                ImageWriteParam param = writer.getDefaultWriteParam();
                if (param.canWriteCompressed()) {
                    param.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);//NO COMPRESS
                    param.setCompressionQuality(quality);
                } else {
                    System.out.println("Compression is not supported.");
                IIOMetadata metadata = null;
                if(getSuffix(filename).equals("png") || getSuffix(filename).equals("PNG")){
                     ImageTypeSpecifier imageTypeSpecifier = new ImageTypeSpecifier(image);
                     metadata = writer.getDefaultImageMetadata(imageTypeSpecifier, param);
                        String sFormat = "javax_imageio_png_1.0";
                        Node node = metadata.getAsTree(sFormat);
                        IIOMetadataNode gammaNode = new IIOMetadataNode("gAMA");
                        String sGamma = "55556";
                        gammaNode.setAttribute("value", sGamma);
                        node.appendChild(gammaNode);
                        metadata.setFromTree(sFormat, node);
                writer.write(null, new IIOImage(image, null, metadata), param);
                writer.dispose();
                return;
            } catch (IOException ex) {
                ex.printStackTrace();
}

Hi,
I am having similar problems. I have read somewhere that png format can not handle CMYK colorspace anyway, which I find odd (and plainly stupid IM(NS)HO) which would mean that converting to RGB and therefore using profiles is mandatory.
May be you should check if the internal format of the png files claims it is RGB or CMYK (using ImageMagick's "identify" command for example).
HTH
JG

Converting RGB to CMYK color

Hi All,
I have few BASIC Questions on converting RGB to CMYK in Photoshop and Illustrator. Hope could get some professional insights here.
1, Are all the DTG printers set only in CMYK color mode ?
2, If there is no difference after viewing RGB image with 'Gamaut Warning' (Photoshop), Does that mean I'll have the exact print result as monitor view ?
and Basically no need for CMYK conversion ?
3, Please list some the most effective way to convert RGB to CMYK, and keep the final CMYK color result as close as the RGB.
4, when I simply convert one RGB image to CMYK color, why Ps/AI don't allow me to save as PNG file ?
( I save the file as PDF, but I cannot edit this PDF using apple preview app )
5, compare Photoshop to Illustrator, which one result better final CMYK color image ?

Thanks for the detailed reply. Sure clear some of the doubts.
I just start to draw/design in Photoshop and illustrator, I save my files most as PNG, for a transparent background.
After I went to officework do the poster printing, I found the color of my print image are not as vivid as Mac preview.
To be precise, the poster I printed looks like has a very thin grey layer, it is not much noticeable, but it indeed lost some vivid color. As I want to print out my works and keep color as close exact as Mac preview, here is the issue of coverting RGB CMYK.
Please feel free to add for below:
1, Should I set color space in CMYK before drawing in PS/AI
2, in PS, I convert profile from PNG file to CMYK save as psd file, that psd file preview exactly same as PNG.
But when saved as PDF, the file preview a bit grey. Can someone explain this?
3, Now im thinking, since CMYK is all about printers, it really should be the profession in printing shop who shall check my image, and edit/convert to the right color space to fit their printers.

Hi, cannot convert RGB to CMYK...

I cannot find such an option in the Elements? Can anyone help how can I convert the files to CMYK from RGB using this tool...
Thanks
ansu

Elements can't convert RGB to CMYK. You'd need the full Photoshop.
Otherwise you can google 'RGB to CMYK' conversion to find online or software tools that can do that.
The real question is why do you need CMYK. If it's a request from a printer shop, it's their job and responsibility to do the conversion, since such a conversion can only be properly done when you know the specificity of your printing tools, inks and papers.

Hyperlink problem when converting Word to PDF

Hi everyone.
I am using Adobe Acrobat 7.0 Standard version 7.1.4 on a Windows 2000 environment.
I am using Word XP/2002 SP3.
I have a couple of problems when converting Word to PDF.
When converting a long link which is in 2 lines, PDF just takes one line into account, not considering the whole link
When I have hyperlinks that links to a web page, the link works fine in Word but in pdf, it gets the few words after the url address making the link not work. For example. I have a hyperlink that http://www.google.com/ and after this I have the words: "This is a sample text". The hyperlink in pdf would then become http://www.google.comThisisasampletext
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To get the cross references, you have to use Convert to PDF (PDF Maker part of the Acrobat product). However, you first need to go to the print menu and set the printer to the Adobe PDF printer. Close the print menu and then do a reflow and link update of the document (ctrl-A, then F9 I think). This is needed to get the links correct since WORD reflows the document based on the printer (problem with them going to the wrong place).
Printing to the Adobe PDF printer (the step of print to file is not needed, just print to the printer and the rest is automatic) does not include the links. PDF Maker is a PreProcessor for the Adobe PDF printer that adds PDF Marks to the PS file before it is sent to Distiller (OK, the printer when used normally creates a PS file and then invokes Distiller to complete the process - your steps did with the Adobe PDF printer is the same process done manually).
Summary:
1. Fix document after setting the printer to Adobe PDF.
2. Use PDF Maker (create PDF button)

Color converting RGB to CMYK mode???

Is it possible to convert RGB to CMYK color mode in Elements 10?

No, not really. If you google around, Richard Lynch had a sort of workaround for this for very early versions of PSE that could possibly be adapted for current use, but a proper CMYK conversion is much more complex, even with the proper tools, than going from sRGB to Adobe RGB, for example.
If you have a mac you can do a mode conversion in Preview, but you may not like what you get from the print shop using that method.

Convert rgb to cmyk in bridge

I am working on a MAC & Photoshop CS2. I
need a how-to action for converting RGB
to CMYK & how to image process it in Bridge.
Many thanks.

If you create an RGB>CMYK action in Photoshop you can easily pick images in Bridge and call up a Batch operation from within Bridge...but it's Photoshop doing the work cause Bridge ain't an image processor (as others have said).

Convert RGB to CMYK in AI

Hi, my printing house said I sent him a RGB file and he needs CMYK for printing.
(1) How can I know the original file is RBG color mode?
(2) How to convert RGB ai file to CMYK ai file?
Thanks a lot!!!

lhcheng,
1) File>Document Color Mode.
2) Tick CMYK instead of RGB.
You should be aware that the RGB and CMYK colours are fundamentally different, so most likely you will have to create at least some colours anew, and you will have to accept certain inevitable changes.
Many RGB colours will be changed to rather muddy and messy CMYK colours, as you can see in the Color palette when selecting CMYK.
And many bright colours will become less so.

Converting RGB to CMYK - Huge color shift. Any tips on getting some decent color back?

I just downloaded a St. Patricks day background from iStockPhoto. Nice vibrant green. We all know when converting to CMYK from RGB, there is a color shift but this is pretty dang dramatic. Any basic tips on getting some of that vibrant color back after converting?

You can boost greens by printing another pass of yellow with the same halftoning on top of your cyan areas. Black and yellow naturalyl also can give the appearance of certain dark green colors, but this may only work on vbery fine rasters. Printing an extra color is always an option, but also keep in mind that a lot depends on what paper is used and how it interacts with the inks. Also many magazines use gloss coating on their front page, which hugely influences perception of "depth" in the colors. And don't forget all the perceptional tricks - such mags often use colored pages because the green looks more saturated when surrounded by a dark red, brown or ocre...
Mylenium

Best results when changing RGB to CMYK

Hi There,
How can I get the best results when converting a RGB to CMYK? For example, a tif visual when offset printing... Is there any programme, plug in, machine for this?
Many thanks

I agree with Marco U.
I might have said: only use Perceptual if an extremely important color in a photo changes terribly using Relative Colorimetric -- otherwise use that. The reason: The former method can make the whole picture shift (usually yellower and weaker) but the latter can make several distinctly different colors (like 3-5 different reds for example) and make them the same. Usually, one or two really strong colors can get shifted somewhat, but won't be noticeable in an otherwise great looking image.
The secret to converting for good print color is to choose the source and target correctly.
If you are serious about color, buy the book "Real World Color Management" by Bruce Fraser, Chris Murphy and Fred Bunting.
http://www.amazon.com/Real-World-Color-Management-2nd/dp/0321267222/ref=pd_bbs_sr_1?ie=UTF 8&s=books&qid=1198178251&sr=1-1
Sadly, Bruce Fraser passed away, so the book may not go to a third edition.But you can still get the second edition and the first 5 or 6 chapters are an education in themselves.

Link problem when converting MS Word to PDF with Acrobat Professional

Hello all,
I have the following problem:
When I have a MS Word document with links to other files inside and I convert it to PDF the links are converted from relative paths to absolute paths.
The problem is created by Acrobat as the links in the MS Word file are relative (I have checked this by moving the different docs to another directory and confirmed that the links still work after the move).
How can I make the paths in the PDF relative again? I know there is a plugin from Evermap (and I can confirm this works) but I do not want to use this plugin (=read: spend another $190 dollars) as the license for the Acrobat Professional is expensive enough . Is there a way I can convert the paths within Adobe Acrobat easily? Or better: can I adjust the settings in Acrobat to a new standard when all converted documents contain relative paths?
Backgroundinfo:
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- MS Word 2002
Thanks in advance!
Bart

Dear Steve,
I have tried what u suggested: I put all the documents (word + linked documents) into the same folder on the local-drive (C). Then I recreated the links in the word document to be sure they were matching. After that I converted the word document to an PDF and confirmed the links were still working in the PDF document.
Then the biggest challenge: copying the pdf and linked documents to another drive&directory. As you can guess: Unfortunately the links did not work anymore.
Any other suggestions?
If I use the Evermap-tool (30 day-trial) I can look at the links and this is how it is 'coded' in the pdf.
first link: ../../../../test/link_a.pdf
second link: ../../../../test/link_b.pdf
and yes this will work if you put the documents in the directory test in the root of the local-drive but not in a different subdirectory.
Anyone ideas?
Grtz,
Bart

How to make a script to convert RGB to CMYK as black 100%?

Hi guy
my customer sent me a book (144 pages) for print but all of them are RGB and Tiff, she scan them. there are on the page some texts and pictures. The text are R=30 G=30 B=30.I think if I can make a script I will do it very soon to black 100%, but unfortunately I dont know anything to make script
anybody can help me ?anybody can make it for me ?

We need to know some more information.
1. The book consists of 144 pages, and each page is in fact an RGB image in TIFF format.
    Correct?
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2. Is the printing process offset printing or by digital printing?
Nevertheless we may think about a conversion of these images into CMYK K-only (one plate
per page) .
a) Increase contrast until R=G=B=0 for text.
b) Convert each image into Grayscale, using a so-called Black-Ink-Profile, for instance
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c) Make empty CMYK image, here for ISOCoated-v2-eci, and paste the Grayscale into the
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All this can be done by an action (I hope so...).
Much better would be a new start by InDesign with typographical text (K-only vector instead of raster)
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Note: Photoshop can deliver vector text, if exported as PDF.
Best regards --Gernot Hoffmann

Problems when converting Office files into forms in Vista

Hi,
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I open Acrobat and select create or edit form and get the window to select the file which is fine.
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Problem when converting RGB to CMYK in illustrator CC

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