Color conversion in Acrobat X

In Acrobat 9 using convert to profile would embed profile and also convert colors so that ink coverage would be within tolerance of profile. I used to use this in V9 to convert ads with a newspaper profile for use in newspapers that have far smaller total ink coverages, and it worked beautifully. I am struggling to find a way in Acrobat X to achieve same results as the same steps i used in V9 don't work the same in X. Any help to overcome this would be great.

Hi,
A digital signature is a PKI based cryptographic operation, not a stamp, and as long as the file isn't locked it can be digitally signed. For that matter you can add a stamp, which is just a type of comment, to the file as well, again providing the file isn't locked due to some other operation (e.g. encrypting the file).
Vector art looks great in a PDF file and it scales just like you would expect.
Steve

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[AS][INDCC] How to set Color Conversion field to No Color Conversion when creating PDF Export preset

How can i set Color Conversion field in Export to PDF dialog to No Color Conversion when creating PDF Export preset? i have done a bit of searching and have found where it has been recommended to set effective pdf destination profile to use no profile but it doesn't seem to be producting the expected results.

Yes, it seems that i had to make the change after creation, not while creating the preset. thank you.
tell application "Adobe InDesign CC"
     set newPreset to make new PDF export preset with properties ¬
          {name:"preset name", standards compliance:none, acrobat compatibility:acrobat 7}
     tell newPreset to set PDF color space to unchanged color space
end tell

Printing RGB colors - Conversion to CMYK?

Hi,
I have been working for a little while in converting my old RGB colors to CMYK printer friendly colors.
However, I carefully choosed my printing friendly CMYK colors to be as close as possible to the RGB colors but the prints are dull !
On the other hand, when I print my file withj RGB colors using the PDF Distiller tagged with Adobe1998 profile and send the file to the printer, colors look smarter !
It means that the CMYK colors I picked myself are not good enough anf the Color Managment in Adobe PDF or Illustrator are better than me ! As follows:
- In Illustrator -> Print -> Color Management tab -> Color Handling: Let Illustrator determine colors
- in Acrobat Reader -> Print -> Color Management tab of the plotter: Application managed colors
Both ouput similar quality prints, and better than my own CMYK colors !
Are the Application Color Management engines in Illustrator and in Adobe Reader similar in their conversion?
How can I find out which are the CMYK colors printed when the application (Reader or Illustrator) manages colors, from my initial RGB colors? I would like to use them directly in my document...
Thanks

Hi,
Thanks for your response. I put these color issues on hold because I had no time to search more on that recently...
However, I have still lots of questions about color conversion!
When I said "carefully choose" CMYK colors, it means CMYK colors printable and which look similar to my old RGB colors on-screen. But of course, screen is not enough!
What I noticed is that when I print my old RGB colors (not in printer color space), Adobe Reader or Illustrator were able to make good conversion to CMYK for printing.
Now, I would like to find out to which CMYK color codes Adobe Reader or Illustrator converted my RGB colors? Then, I would be able to use these CMYK color codes directly in my application...
Is there any way to find out that?
Cheers

Color conversion : special behavior with Spot Color "All"

Hello,
I have a document with printmarks which have a spot color "All". While I convert the page using the "Color conversion" to Gray 1.8 with Adobe Acrobat X the spot color "All" are still present (with the alternate color space DeviceGray).
Using Adobe Acrobat 9.x all objects have a DeviceGray color.
Is it a bug or a new behavior? Moreover the SDK method doesn't convert the spot color but keep the name (but I know this is not the right place to post it - it's just for information).
Regards,
Joe

I sense you may not understand the difference between sopt and process colors in the printing process.
When you use process inks you build all color representations by combining dots of varying sizes from each of the four process colors, cyan, magenta, yellow, and black. Because the dots are two small to be seen individually your brain is fooled into thinking it sees other colors. Process color printing requires four printing plates to produce the full range of colors possible, but that range is limited compared to what you can see in real life or capture in RGB.
Spot colors, in contrast, are similar to paint. Each color is mixed individually, and every spot color requires its own plate on the printing press (and you must use a press -- toner and inkjet printers use cmyk inksets and cannot print real spot colors). Because of the expense of these plates, the use of spot colors is usually limited to one or two colors in any print job, and if the job has other color (like photographs) that requires process inks, converting the spot colors to the closest process simulation is often employed if the spot colors can be simulated "close enough" to satisfy the client and the budget is tight.
I would avoid using process colors for type in small sizes or for very thin strokes, especially in lighter colors, as you are likely to see ragged edges.
So, how many spot color swatches did you use? More than two? More than four? Do you have a huge budget to produce the work? This may be a project that really should be designed from the ground up as process, or process and one spot for that hard to print bright accent color.

Color Conversion for all Elements

Hi,
I am writing some plug in which can convert Color of the PDF for that i have used "PDDocColorConvertPage" it is perfectly working well for Grayscale Conversion, But the same method is not working for the Pantone (SpotColor) to CMYK conversion, so i tried with PDColorConvertPDEElement it is also not working,I don't find any Code sample to use that function. I was blocked, please help me out to find the best method for color conversion problem.
Regards,
Kumar.K

I am using Acrobat 9, Here i am giving the code which working now, in that my objective is to change all the elements to Grayscale, but i am sure that i did some mistakes, Please let me know where i made the mistake
Code:
AVDoc avDoc = AVAppGetActiveDoc();
char str[256];
ASPathName aoPDFPathName = NULL;
char* OutputPdfFileName = "C:\\Output.pdf";
ASText pathText = ASTextNew();
ASFileSys aoFileSys = NULL;
pathText = ASTextFromScriptText(OutputPdfFileName, kASRomanScript);
aoFileSys = ASGetDefaultFileSysForPath(ASAtomFromString("ASTextPath"), pathText);
if(avDoc==NULL)
sprintf(str,"There is no PDF document loaded in Acrobat.");
else
PDDoc pdDoc = AVDocGetPDDoc (avDoc);
int numPages = PDDocGetNumPages (pdDoc);
ASInt32 ai, aiNumElems;
PDEContent aoPDEContent = NULL;
PDEElement aoPDEElement;
PDPage aoPage = NULL;
aoPage = PDDocAcquirePage(pdDoc, 0);
aoPDEContent = PDPageAcquirePDEContent(aoPage, 0);
aiNumElems = PDEContentGetNumElems(aoPDEContent);
sprintf(str,"The active PDF Page has %d Elements.", aiNumElems);
AC_Profile prof;
ACProfileFromCode(&prof, AC_Profile_DotGain15);
for (ai = 0; ai < aiNumElems; ai++)
aoPDEElement = PDEContentGetElem(aoPDEContent, ai);
PDColorConvertPDEElement(pdDoc, aoPDEElement, prof, AC_UseProfileIntent, true);
if (aoPDEContent != NULL){
PDPageReleasePDEContent(aoPage, 0);
// inform the user if we have done a color conversion.
if(ASBoolToBool(gbConverted) == true)
AVAlertNote("Color transform has been done to Gray");
else
AVAlertNote("No color transform was made.");
aoPDFPathName = ASFileSysCreatePathName (aoFileSys, ASAtomFromString("ASTextPath"), pathText, 0);
PDDocSave (pdDoc, PDSaveFull | PDSaveCollectGarbage | PDSaveLinearized, aoPDFPathName, ASGetDefaultUnicodeFileSys(),NULL, NULL);
PDDocClose (pdDoc);
ACUnReferenceProfile(prof);
Thanks,
Kumar.K

[AS][IDCS3] PDF Export Preferences Color Conversion setting

I want to set the field of Color Conversion (as equivalent to manual setting under Output>Color>Color Conversion) to "No Color Conversion" in Applescript but couldn't figure it out.
My skeleton Applescript is as follow:-
tell application "Adobe InDesign CS3"
   tell PDF export preferences
       -- I want to set No Color Conversion for Color Conversion here
   end tell
   tell document 1
       export format PDF type to filename without showing options
   end tell
end tell
I have search through Applescript ID CS3 dictionary but couldn't find the answer. Hope someone can advise. Thanks!

Use:
set effective PDF destination profile to use no profile
Shane Stanley <[email protected]>
AppleScript Pro Sessions <http://scriptingmatters.com/aspro>

CMYK to RGB color conversion?

Hi,
I have to convert CMYK color array in the RGB color space and vice versa.
I am using the following code;-
UID colorUID = iDrawing->GetColorUID(kFalse);
UIDRef colourUIDRef(iDrawing->GetDataBase(), colorUID);
InterfacePtr<IColorData> colorData(colourUIDRef, UseDefaultIID());
char
strColor[16]={0};
if(colorData->GetColorSpace() == kPMCsCalRGB)
    ColorArray rgbColor = Utils<IUIColorUtils>()->GetRGBColorValue(m_DB, colorUID);
    sprintf(strColor,
"#%.2x%.2x%.2x", ToInt32(rgbColor[0] * 255), ToInt32(rgbColor[1] * 255), ToInt32(rgbColor[2] * 255));
else
    ErrorCode errStatus = GetRGBColorStr(colourUIDRef, strColor);
ErrorCode GetRGBColorStr(UIDRef colourUIDRef,
char* strColor){
    ErrorCode status = kFailure;
    do
          I
nterfacePtr<IColorData> colorData(colourUIDRef, UseDefaultIID());          IDataBase* m_DB = colourUIDRef.GetDataBase();
// If color sapce is other then RGB then get the colour array
    ColorArray colourArray = colorData->GetColorData();
    // If the colour space is CMYK then convert it to RGB
    if(colorData->GetColorSpace() == ICMSProfile::kSourceTypeBuiltInCMYK)    {
          IDocument* document = Utils<ILayoutUIUtils>()->GetFrontDocument();
          ColorArray rgbColor = Utils<IColorSystemUtils>()->ColorTransform( document, colourArray, ICMSProfile::kSourceTypeBuiltInCMYK,ICMSProfile::kSourceTypeBuiltInRGB);
     sprintf(strColor,
"#%.2x%.2x%.2x", ToInt32(Round(rgbColor[0] * 255)), ToInt32(Round (rgbColor[1] * 255)), ToInt32(Round(rgbColor[2] * 255)));     status = kSuccess;
}while(kFalse);
return status;
}while(kFalse);
return status;

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.

DNG & Camera Manf. JPG color conversions

IF, a Camera Manf. had a camera that outputs to DNG ... could they imbed in the DNG file ... the "equivelent" of LR "pre-sets" for "there" JPG Color conversion.
* So, In LR at a click of a Pre-set listing you could see what the Camera Manf. JPG out of the camera would be like. (if you "would have" shot this DNG in JPG) ... and then you could do a compair.
Or maybe you would "just" run it as a choice on import ... as a starting point, or when in a rush a result.
* Just curious ... could this be done?
Is it only me, or could this be a useful productivity feature for LR.
p.s. I do get the fact that you could make your own pre-sets for your camera.

> "being a designer/distributor myself you are always trying to find ways to make your product (output) different and exclusive ... so yes, having a Generic DNG and making "my" product/output a commodity would not be my first choice either".
I used to help design large, complicated, multi-supplier computer systems. I sometimes got involved with helping to procure products.
The suppliers would try to make us enthusiastic about their special features. If we procured their products, we would often simply lose those features under an abstraction layer of software - they were unwanted! We needed interchangeable components. Call it "commodity" if you like - but I don't really agree with that term here. "Commodity" to me implies that it doesn't matter which you choose. "Interchangeable" still leaves other factors to be taken into account.
If Nikon adopted DNG (chuckle!) we wouldn't really claim that a D40 and D80 and D200 and D2Xs were "commodity"! They would still be high quality high value differentiated products.
In fact, camera manufacturers are pretty foolish if they adopt such an attitude. Within weeks of camera launch, all the major raw converter suppliers have reverse-engineered the raw files and camera details enough to be able to perform high quality raw conversions. All essential aspects of the specification are known, and sometimes even published by 3rd parties!
Who do the camera manufacturers think they are hiding information from? Answer: "from 3rd party software companies whose mission is, in effect, to make the images from the camera look as good as possible"! How stupid can camera manufacturers be?
DNG still has ways for camera manufacturers to hold what Adobe call "secret sauce". There may well be limitations in the current specification of DNG that causes problems for some manufacturers - Hasselblad-Imacon apparently had problems. But most manufacturers almost certainly have no such problems - and Pentax shows what CAN be done by a camera manufacturer, (the one who once tried to promote the idea of a universal lens mount), that cares about its users and sees the way the world is moving.

Disable color conversion when PDF export

how to disable color conversion in my sample scritp?
pdfExportPreset = app.pdfExportPresets.add({
name:"sample preset",
pdfExportPreset.standardsCompliance = PDFXStandards.PDFX1A2001_STANDARD;

actualy, if you need PDF-X1A standard, it's not as much about the export preset as is about the workflow. PDF/X-1a requires all fonts need to be embedded and all images need to be CMYK or spot colors. So if you have RGB images, they will be converted to obey the standard.

While in Indesign CC 2014 i am unable to preform a color separtion to Acrobat DC 2014

While in Indesign CC 2014 i am unable to preform a color separtion to Acrobat DC 2014. Is there a fix to this.

The answer was posted here:
Indesign CC 2014 color separation to Acrobat DC 2014

While in Indesign CC 2014 i am unable to perform a color separation to Acrobat DC 2014

While in Indesign CC 2014 i am unable to perform a color separation to Acrobat DC 2014. Is there a fix to this?

You can export using one of the PDF/X presets from InDesign and then print separations from Acrobat DC via Print>Advanced>Color>Separations.

Crash while launching in "building color conversion tables"

Photoshop CS6 crashes while "building color conversion tables" I reinstalled the program but it still hangs up at this point. please help!

I've only seen 3 things that can cause a crash at that point: corrupt profiles (mostly display profiles), corrupt information coming from the OS about the system profiles, and bad floating point units in CPUs.
First thing to check is the display profiles. If setting them to sRGB doesn't solve the crash, it might be a bug in the OS profile cache. And let's hope it isn't the CPU, because those problems are a @$%^@#%# to track down in modern processors.

InD 6 file color different in Acrobat

I set my color profile in Bridge so all programs in CS6 sync. Images I build in Pshop (RGB 6x9@300 res) retain color when imported into InD.
If I export the InD file as jpg, image also retains color. But when I export same InD file as PDF, the color shifts slightly. This is not always this noticeable.
But in this attached sample, you can see more of a purplish blue than in the InD window file. I can send the client the jpg with more accurate color.
But I should be able to do same with a PDF, in case they prefer a PDF.
The inset box shows the pref color setting in Acrobat.
How can I get Acrobat color to match InD and Pshop?

if I could find an 8 version
I think you want to be careful about trying to avoid a fairly benign bug by installing old software. You maybe seeing the monitor profile bug, but it could also be the assigned profiles interacting with the chosen simulation profile in AcrobatPro.
If you want to include RGB objects in a print workflow it's essential that all of the RGB objects have embedded profiles—you would never want DeviceRGB (RGB without a profile). So whatever version of AcrobatPro you use check the RGB profiles via Acrobat's Output Preview>Object Inspector.
The best way to ensure that the correct profiles are included is to use the PDF/X-4 preset. Here in InDesign I can see that a sample RGB image has AdobeRGB embedded via the Links panel—it's not DocumentRGB:
If I export to PDF/X-4, Object inspector will show the image as RGB with the embedded AdobeRGB profile when I click on it. The preview however depends on the Simulation Profile. Here I have it as the CMYK output intent, but I could also choose Abobe RGB and get an RGB preview:
If you don't use the PDF/X-4 preset it would be possible to lose the embedded profile (depending on your settings) and that would cause both an output and a softproof problem. You don't want DeviceRGB:

Pantone Color Conversion

Have 2 Intel Mac Pros running 10.5.5, InDesign 5.0.4. When opening the same document on each machine I get 2 different CMYK color conversion of a Pantone color. Both machines have the same color settings as far as I can tell. Anyone have a idea why this happens, or how to make them the same.
Thanks

Choose the Ink Manager from the Swatches panel menu (or from Print dialog or Export PDF dialog). Look at the "Use Standard Lab Values for Spots" option at the bottom. Depending on whether on or off it will use Lab values (like Photoshop) or CMYK values (like ID and AI have traditionally used).

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.

Color conversion in Acrobat X

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