RGB or CMYK profile?

hi all
I need to know if my printer uses RGB or CMYK profile. I have 2 Hp printers, one inkjet and one color laser. I know inkjet (should) use RGB profile, but my problem is the color laser. I wish to confirm definitevly if it uses rgb or cmyk (since many lasers uses CMYK, yet not all)
my model is HP CP1515n
This is mainly for calibrating the printer for spoof printing.
I tried to search on the web but havent found much
and the providers who offer calibration service tell me to confirm with manufcaturer.... so to summarize, is there a way to know any printer what type of profile does it use? (and if it is able to load a custom profile?)
I'm running both win XP and Win 7
thanks

Both the inkjet and laserjet printers have CMYK inks or toners, but the drivers for both expect RGB data (actually sRGB).
Perhaps someone else here could give insight about applying color management profiles, that is outside my expertise.
Bob Headrick, HP Expert
I am not an employee of HP, I am a volunteer posting here on my own time.
If your problem is solved please click the "Accept as Solution" button ------------V
If my answer was helpful please click the "Thumbs Up" to say "Thank You"--V

Similar Messages

Choosing profiles for forced RGB to CMYK color conversion

When a mixed RGB/CMYK PDF is opened in Illustrator CS6, Illustrator forces a conversion to one color space or the other. See this screenshot: http://imgur.com/sK8iEdn
I assume this is a limitation of Illustrator and there's no way to keep both color spaces. Under that assumption, Is it possible to choose the profiles used for the conversion from RGB to CMYK? Can Illustrator be made to use the RGB and CMYK profiles defined in its Color Settings to make this conversion?

I did some experiments with Illustrator CS6 and the MacBeth RGB test chart and verified my results with Photoshop CS6. I discovered Illustrator is (mostly) doing what it should be doing, within a 1% error (probably rounding) on the output CMYK values. Here's a summary, in case anyone else needs this info:
Assuming the source file's elements are all untagged, when a mixed RGB/CMYK PDF is opened in Illustrator and CMYK mode is
chosen, Illustrator will use the profiles and rendering intent defined in
Color Settings to make the color conversions from RGB to CMYK. Thus, we
have control over the profiles used for this conversion.
If the RGB elements in the PDF file have embedded ICC profiles,
Illustrator will use the embedded ICC profile instead of the RGB profile
defined in Color Settings. This ONLY happens, however, if the PDF file
also includes the correct CMYK output intent profile.
If the PDF doesn't contain a CMYK output intent, Illustrator will fall
back on the Color Settings RGB profile for RGB->CMYK conversion. I believe it
would be more correct for Illustrator to use the embedded RGB profile and
the CMYK profile defined in Color Settings, but that's not how it seems to work.
If the PDF contains the incorrect CMYK output intent, Illustrator will
ignore the Color Settings and respect the embedded RGB and CMYK profiles
for the conversion, as might be expected.

Is the win 8 driver for the printer photosmart D7360 rgb or CMYK?

Hi,
I will be using Lightroom 4.2 (under win 8 64) and will have the monitor and printer (HP Photosmart D7360) calibrated by a colormunki photo.
When the printer profile is generated by colormunki, depening on the actual printer driver, they will be either a RGB or CMYK profile. Apparently, LR 4.2 will only show printer profiles to use if the driver of the printer is RGB . So if it was CMYK, I wouldn't be able to use the profile for printing in LR.
Can anyone please tell me if this printer driver is RGB or CMYK?!
Any help will be greatly appreciated!
Regards,
This question was solved.
View Solution.

The driver expects RGB data. The actual color inks in the printer use CMYK but that is handled by the driver, the applications need to send RGB data to the driver.
Bob Headrick, HP Expert
I am not an employee of HP, I am a volunteer posting here on my own time.
If your problem is solved please click the "Accept as Solution" button ------------V
If my answer was helpful please click the "Thumbs Up" to say "Thank You"--V

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

Layer got merged after using convert to profile form RGB to CMYK

Hi all,
I am converting a print design in photoshop cs5 from RGB to CMYK. My Layer got merged after using convert to profile form RGB to CMYK.
after this i have save file and close it and i didn't have backup of this file.
Now Please suggest How do i recover my all layers
i need only my layers back..... Please help me

Sorry bud...but if you converted to CMYK and did NOT hceck Preserve Layers and then saved over your original layered RGB file, your layered RGB image is toast–as in gone, as in you are screwed...sorry, but Convert to Profile can flatten all the layers (depending on the options) and once flattened and saved, you have no option to recover the layered RGB file (unless you have is saved somewhere).

Color profile when changing from RGB to CMYK

I prefer to work on images in RGB then change to cmyk once I'm sure i won't need to run any more effects or filters on them. When I save an image the first time, I have the option to embed my color profile with the image. It embeds the RGB profile... the only option as long as I'm working in RGB. What I've noticed though, is that after converting to cmyk, I don't get any warnings or other indication that it needs me to embed the color profile. I need to do a save-as in order to get back to that option.
So the question is... does Photoshop automatically switch to my default CMYK color profile when I convert to CMYK? So when I save, it's now using the CMYK profile?

Save your original RGB file.
Then, RGB file > Edit > Convert to Profile (with CMYK#1) > Save As...
This creates your first CMYK file.
Then, back to original RGB file > Edit > Convert to Profile (with CMYK#2) > Save As...
This creates your second CMYK file.
Then, back to original RGB file > Edit > Convert to Profile (with CMYK#3) > Save As...
This creates your third CMYK file.
In all cases, be sure you have "Embed Color Profile" checked at the bottom of the Save As dialog. When naming a file, it's handy to include some sort of indication as to the color space.
In the end, you have four files: 1 RGB file, 3 CMYK files.

How do I find out if a photo in iPhoto is RGB or CMYK color? How do I change from RGB to CMYK?

How do I find out if a photo in iPhoto is RGB or CMYK color? How do I change from RGB to CMYK?

Open the file with Preview, type Command + i to bring up the Info pane and it's color mode and profile will be listed as shown here:
To change the color mode to CMYK you'll need a 3rd party image editor like Photoshotp or GraphicConverter to do it. Why do you need CMYK?
OT

Why do I need to use a CMYK profile?

Hi all,
I am new to these forums, but have some theoretical and a bit of practical knowledge on Color Management. I know what a dot gain, color space, true black vs composite black, etc are, yet I struggle to build the big picture of the whole thing. I am actually doing design work, where we are going to print a brochure. I have done the Illustrator artwork, it has an embedded image and I am trying to make it ready for a good precise print.
My question is, why do I need a CMYK profile at all??
As I understand it, my document IS CMYK already, i.e. it uses component C, M, Y and K numbers for artwork primitives, and as far as I can understand the whole point of working with CMYK instead of RGB (which is for additive colorimetry - i.e electron guns and LCDs) is the fact that it is suitable for printers. If Cyan, Magenta, Yellow and BlacK inks get input from the CMYK numbers, then the print should look the same on all ink-utilizing devices, should it not?
That said, I understand the point of RGB-to-CMYK conversion and vice versa, since obviously i have to preview my art on my monitor before it gets into printing. But since CMYK profiles exist, does it mean printers printing the same CMYK values get different results? (disregarding issues of different paper weights and dot gains)
Thanks. This has been bugging me, and I am not THAT much into printing yet as to buy the Real World Color Management book i ve been hearing so much about.

If I may add,
The ONLY times most of us need to embed an ICC profile in a CMYK file are:
1) We want to PROOF it faithfully on a hardware-calibrated monitor (Photoshop reads the embedded profile and Converts it to Monitor RGB).
2) We want to PROOF it faithfully on any other hardware-calibrated printer that uses a different Target color space (Photoshop reads the embedded profile and Converts it to the specific target profile). (Or the workflow ignores my Source Profile and Converts to target proofing space based on the wrong working space).
3) We need to CONVERT it to another profile (Photoshop reads the embedded profile and Converts it to a new target space/profile).
PERSONALLY, when I deliver CMYK it is already Converted to the correct CMYK (directly from my 16-bit Adobe RGB file), and I do not want anyone downstream dinking around with My Color.
The old Quark did this task nicely -- simple place the tif and print the job.
Today's pdf and color-managed layout programs make understanding and implementing this instruction much more confusing and hazardous (how to send 'the numbers' straight through).
If I trust the print shop 100%, I will hand them my 8-bit Adobe RGB and let them do the Conversion to their press CMYK.
Otherwise, send [my] CMYK 'numbers' straight through. Period.
+++++++
The problems with people who do not understand HOW ICC profile work is they will strip my profile (knowingly or unknowingly) and Assign-Apply-Assume their own profile -- effectively -- hosing my color.
This problem is easy to see in Photoshop by Assign profile.
The classic real-world example is the old-school print shop's clueless "color expert" who ignores our embedded profile, because he says, he has turned "color management off" and "doesn't use profiles." He tells us our file is bad because his print is bad, and he will try to correct our bad color and print another round of proofs.
Does this sound familiar?
What the cave man actually did was strip our embedded file of its profile, and/or he Applied-Assumed-Assigned his own working space to our file then he takes a sledgehammer and beats our color up into his closed workflow (and he is probably working on an uncalibrated monitor to boot).

RGB to CMYK problem

I have just started using Photoshop CS3 amending photos and adding text & graphic for printing. The photos start off in RGB but when I get them printed in CMYK they look dark and terrible! Can anyone offer me guidance on how to handle the transition of photos from RGB to CMYK and how to avoid making them darker/destroying the quality?
Thanks!

Are your source RGB files tagged? Are you sure the profile is correct? What's the output CMYK profile? Is your monitor calibrated and profiled?
If you have a good source profile on the files, and you know the CMYK target profile, you should do the RGB-CMYK conversion in Photoshop yourself, then tweak the colors using softproof. (Make sure you save the CMYK conversions and edits as SEPARATE files - don't save them over your source RGB files!)
The resulting files should reproduce much better on the press. If not, chances are good the printer isn't honoring your embedded profile or is doing another CMYK conversion without telling you.

Rgb to cmyk turns white brown

Hi Guys
In previous versions - changing from RGB to CMYK or vice versa would change the colours slightly but ever since CC when I change one to the other my white
goes brown and there is a yellow tone to the image.
Has anyone else experienced this - it's not slight either see image. I haven't adjusted anything - the original CMYK is on the left and
when I make it RGB - it goes brown.
Has anyone else had this issue?

I'd try a new display profile first. Recalibrate, or if you don't have a calibrator use sRGB (or Adobe RGB if your display is wide gamut).
Everything in Photoshop passes through the display profile. If there's a problem with the profile it can happen that one conversion goes bad but not another.
On Windows a common cause for this is bogus manufacturer profiles pushed through Windows Update. Mac isn't as susceptible to this, but there you have an added complication called ColorSync (which is where the actual profile conversions are done). So if a new profile doesn't fix it, you probably need someone with Mac OS X expertise.

RGB to CMYK gives me a white glaze? how to get rid of it

In photoshop cs5 when i convert an image i am working on from RGB to CMYK i get a white glaze over the image? as if i have added a photo filter or something? do you know how to prevent this on a mac computer?

Apple Custard Studios wrote:
…yes i can see that it is broke, but if you look in your last post the before image is in there for some reason, and the after picture is at the top in the earlier discussions.
Sorry, I don't understand what you're trying to say here. How can the "before" image be in any post of mine if I have never been able to see it?
The image I posted in my post, was your "after" image CORRECTED by me as explained in that post:
"Converting it to sRGB and setting the black and white points via a quick Auto Levels adjustment, brings about an improvement."
In other words, I downloaded your "after" image, opened in Photoshop, went to the Edit menu and used Convert To Profile to convert it to the sRGB color space, then I ran and Auto Levels adjustment. That's how I fixed your mess.
Apple Custard Studios wrote:
Hi station_two
…When i convert from rgb to cmyk, i SIMPLY GO: Image > mode> then click cmyk?…
Geebus Chrysler! No, that is indeed not just "primitive" but totally wrong. Go to the CONVERT TO PROFILE menu item in the Edit menu in Photoshop, and from that menu select the specific CMYK profile you want (or your printer requests). Be careful to select CONVERT TO PROFILE, do not under any circumstances choose "Assign Profile"! Converting to the appropriate CMYK profile will also automatically change the image mode to CMYK mode.
Apple Custard Studios wrote:
…which i am unsure it it may mean i have wrong profiles set, but if so what would i need to change it to?…
Apple Custard, it's obvious that you have no clue as to what Color Management is, and teaching you Color Management step by step here exceeds the scope of what can be accomplished in a forum. A good place to start reading up on it is here:
http://www.gballard.net/psd/cmstheory.html
In a nutshell: Your Monitor profile should be the file resulting from your calibrating and profiling your monitor with a hardware calibrator puck. Calibrate and profile your monitor regularly and often. Your monitor profile thus will be device-dependent, specific to your monitor.
Your working space, on the other hand, should be a device-independent profile, such as Adobe RGB or sRGB. It should NEVER, ever be your monitor profile.
Your target profile when printing should be device-dependent and specific to the combination of ink, paper and printer model you'll be using. For the web, create a copy of your image file and convert it to sRGB, then save it as a JPEG as needed.
Good luck!

RGB to CMYK to commercial printer

We are using CS2 InDesign and Photoshop 7 on a PC. I am putting together two
large books. One insert section of the first book has color photos. I have
to prepare these color photos for a printer located in China. They want all
images to be CMYK .tiff.
I have an assortment of about 100 images from various sources around the
world, there are .tif, .jpg. .bmp, and .psd. All of them appear to be RGB.
There are images with: 1) no color profile, 2) sRGB IE60966-2.1, and Adobe
RGB 1998. Do all images need to have the same RGB color profile before
converting to CMYK?
I have been converting all of these to .tif (and using a single dpi/pixel
resolution for
all images).
Do I just select/save as color mode CMYK? Or are there special
settings/profiles I need to know about. Is there anything special for China?
The printer's English is not that clear . I was hoping that someone in this
group would be familiar with RGB to CMYK conversion.
Also, it appears that the final PDF pages (with embedded Tiff images) will
be very large. The first complete book for this project (there are two
books) looks like it will be about 20GB. The second book looks like it could
be 12GB. Both books together equal about 1,000 pages and have about 1,000
images. 90% of the images are grayscale. What are the current technologies
for sending large projects like this to a printer?
Thanks
ps, the Photoshop group suggested that I write to this group.

Tech....
In the conversions, are you referring to conversions of B&W or color images? I'll assume color for the moment.
Assuming your monitor is properly calibrated, and assuming you are viewing your color images on your monitor, your conversions should keep "in gamut" colors the same. You will, however, probably see some loss of dynamic range, color, and saturation as you enter CMYK. If the color and dynamic range of the original is all within the destination CMYK gamut, you should see very little, if any, shift. The sad fact is that CMYK on press has limited dynamic range and color, especially compared to a bright monitor. This is generally true, though CMYK can print some colors that lie outside the typical monitor's gamut.
If you have a brightly colored original in RGB mode, then you should experiment with both perceptual and relative colorimetric rendering to see which one looks best. This is an image by image thing. Relative colorimetric will reproduce all "in gamut colors" as accurately as possible, then will take out of gamut colors and bring them to the closest printable color. This can cause loss of detail and 'piling up of colors' as you near the boundaries of the image's color gamut in the destination CMYK space. Perceptual scales ALL colors and preserves the relationships between colors, which sacrifices color accuracy and saturation, but sometimes looks more natural, especially if there are a LOT of out of gamut colors. Pick whichever ones looks best overall.
Then, once in CMYK, make minor curves adjustments to tweak if for CMYK. Just be careful not to push it too far, especially in the deep shadows, since you may push beyond the ink limit of the press. For example, if you convert to US Web Coated SWOP v2, the ink limits are set at 300 total. If you drastically darken the shadow areas, you could end up with an ink limit of 320, 330, 350, etc. Knowing the ink limit of the press will help you stay within those limits. Final tweaking in CMYK is usually a good thing.
How did you determine that the images were dull with too much magenta? Did you print a proof on a calibrated printer, or is this just your screen display? Or is this from a printed image off the press? I have a well calibrated monitor and accurate custom profiles for my inkjet. If I am sending a job to a press that supposedly prints to US Web Coated SWOP, I can proof that file on my inkjet and get a very good match. We need more information to know exactly what you are doing and how you are assessing your images.
Normally, I do the conversion in Photoshop, using the rendering intent that looks best. Then I tweak the image in CMYK to get it looking its best. I usually have the press profile, but sometimes work with a standard profile if no custom profile is available. I leave the image tagged with my conversion profile. Then, I usually place these images into InDesign, with the profile intact (color management turned on in InDesign). I right click on the placed image to be sure that the profile and rendering intent are set to what I want. Then, I can either supply the InDesign file to the printer, or convert to PDF (leave color unchanged) and make sure that all profiles are included. InDesign should export each image to the PDF properly, along with profile and intent. I have never sent to job to press using Photoshop...only InDesign or Illustrator.
BTW, rendering intent is only used when getting an image from one color space to another, such as a conversion from RGB to CMYK. You do that, choosing the one that looks the best. Once it is in the destination CMYK space, rendering intent is no longer needed, since all the colors and tones have already been remapped into the final space. Rendering intent is just used to help us handle those out of gamut colors.
Hope this helps.
Lou

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?
    That means, the text is already rasterized, but with low resolution (no more than 300ppi).
    A very bad starting point, in my humble opinion. For offset printing this is not acceptable.
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
    Black-Ink-ISOCoated-v2-eci (can be explained later)
c) Make empty CMYK image, here for ISOCoated-v2-eci, and paste the Grayscale into the
    K-channel. All further handling happens as CMYK file for the process ISOCoated-v2-eci.
    Void plates CMY don't matter.
    Post #12 here:
    Re: Colour shift (from CMYK = 0 0 0 20 to Grayscale K = 22 !)
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)
with images in RGB or CMYK, taking into account the intended process.
Note: Photoshop can deliver vector text, if exported as PDF.
Best regards --Gernot Hoffmann

How do I remove cmyk profiles from a pdf. and keep it strictly 2 color process?

My company is trying to outsource a booklet to an offset printing company. We are strictly digital printing, and I honestly have no experience with offset. In the past I would build the documents with the pantone colors that were needed in whatever software I was using to create it (Illustrator, Indesign), do my checks and fixes in Acrobat and send it to the printer, and it would get done. The current printer is having an issue with the files that I'm giving him. He says, that the files contain CMYK profiles, and has to strictly be 2 color process. The file is pointing to the correct spot colors, but it does still does contain the CMYK profiles, list I have no idea how to remove the CMYK profiles, I can convert them to RGB, but that doesnt help. How do I remove these profiles and make the PDF strictly use spot colors, or does this not make any sense, Honestly it doesn't to me.

Honestly it does not to me either.
You have a history of creating spot color files - but are using a new vendor...what I'm hearing from the vendor doesn't make sense
...do my checks and fixes in Acrobat and send it to the printer, ...
Have you checked the PDF - verified that your Spot colors are Spots, not cmyk builds?
The current printer is having an issue with the files that I'm giving him. He says, that the files contain CMYK profiles, and has to strictly be 2 color process.
Communicate very clearly - cmyk profiles or cmyk elements?
To my limited knowledge, every file will have a profile - it's a moot element in spot color printing -

Including CMYK profile in InDesign PDF Export

Hi,
I'm trying to export from InDesign a pdf file, which includes embedded profiles both in RGB and CMYK images. There are two linked images in my INDD layout, one embedded with RGB profile and another with CMYK profile.
In Output I have the settings NO COLOR CONVERSION.
When in PROFILE INCLUSION POLICY I try to include profiles to images, I only can have the CMYK profile with the setting INCLUDE ALL PROFILES. But with that setting also native CMYK elements like text will be tagged with a profile, and that I do not want to have.
With the RGB image the profile is included.
Question # 1: Why do not CMYK profiles will be included with the settings: INCLUDE TAGGED SOURCE PROFILES and INCLUDE ALL RGB AND TAGGED CMYK SOURCE PROFILES??? According to the help they should do that.
Question #2: Is the item CREATE TAGGED PDF in the GENERAL tab related to this somehow?
Best Regards
Erkki H

If you choose Include All RGB and Tagged Source CMYK Profiles any placed CMYK objects that have profiles that match the document's CMYK profile are considered Device CMYK, and no conversion is necessary at output. So in this PDF I have the same image profiled with the document's GRACol CMYK profile (top) and US Newsprint (bottom). Acrobat's Output Preview tells me that the top image is Device CMYK (it matches the PDF/X Output Intent) and the bottom image has the US Newsprint profile:
The bottom image sampled
But with that setting also native CMYK elements like text will be tagged with a profile, and that I do not want to have.
If you don't use the PDF/X-4 standard and change the output to Include All Profiles then all color including native ID colors gets profiled. In that case my top image would have the GRACol profile and as you noted any native colors would also be profiled.
I'm not following why placed image color should be profiled, but a native ID color shouldn't?

RGB or CMYK profile?

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