I have a situation slightly different but similar enough in nature not to require a new thread.  While I'm using Acrobat X on Win7, I think most everything I'm doing remains consistent in Acrobat 9, and it may help shed some common light.

In my case, I am trying to call  "colorConvertPage" (the Javascript API version Iorsenth recommends, above, and not the "PDDocColorConvertPage" exposed by the C++ API) from a VBscript via  the JSObject.  My problem is that I cannot figure out how to correctly configure and pass the two arrays of "colorConvertAction" objects that the JavaScript method requires as its second and third parameters.

The purpose of the script is to merge large numbers of TIFFs into multiple PDFs, combining them based on a filename schema.  After each document is created, I want the script to convert all of the page images to sRGB before saving.

I have been able to implement Mr. Kremer's method of creating a native Acrobat folder-level JavaScript to perform the color conversion and then calling that from the VBscript.  The Javascript is taken almost verbatim from the example given under the "getColorConvertAction" method in the Acrobat X JavaScript API Reference, only changing the profile to sRGB and then adding the loop through all the pages and a slight modification of Karl's code to add the function as a menu item under Edit:

function ConvertAllTosRGB()

{

    // Get a color convert action

    var toRGB = this.getColorConvertAction();

    // Set up the action for a conversion to RGB

    toRGB.matchAttributesAny = -1;

    toRGB.matchSpaceTypeAny = ~toRGB.constants.spaceFlags.AlternateSpace;

    toRGB.matchIntent = toRGB.constants.renderingIntents.Any;

    toRGB.convertProfile = "sRGB IEC61966-2.1";

    toRGB.convertIntent = toRGB.constants.renderingIntents.Document;

    toRGB.embed = true;

    toRGB.preserveBlack = false;

    toRGB.useBlackPointCompensation = true;

    toRGB.action = toRGB.constants.actions.Convert;

    // Convert the first each page of the document

 

    for(var i = 0; i < this.numPages; i++) {

        var result = this.colorConvertPage(i,[toRGB],[]);

    }

}

 

// add the menu item

app.addMenuItem({

     cName: "ConvertAllTosRGB",

     cUser: "Convert Doc To sRGB",

     cParent: "Edit",

     cExec: "ConvertAllTosRGB();",

     cEnable: "event.rc = (event.target != null);"

});

Once that .js is dropped into one of Acrobat's script folders, the function can be successfully called from vbs with "jso..ConvertAllTosRGB" (where "jso" is a JSObject successfully created by a call to a PDDoc's .GetJSObject method.)

Where I'm running into trouble is in trying to replicate that JavaScript function within the VBscript itself (which would be more convenient than having to distribute two separate scripts.)  I can successfully create a colorConvertAction object, however I can't seem to successfully cast that object as one in an array to pass to colorConvertPage (nor create the empty array to pass as the third parameter.)  The pertinent portions of the scipt are something like...

Dim AcroApp

Dim AVDoc

Dim PDDoc

Dim jso

Dim toRGB

Dim i

Dim result

 

Set AcroApp = CreateObject("AcroExch.App")

Set AVDoc = CreateObject("AcroExch.AVDoc")

 

If AVDoc.Open("c:\path\some.tif"), "") Then

     Set PDDoc = AVDoc.GetPDDoc

     Set jso = PDDoc.GetJSObject

     Set toRGB = jso.getColorConvertAction

 

     With toRGB

          .matchAttributesAny = -1

          .matchSpaceTypeAny = Not .constants.spaceFlags.AlternateSpace

          .matchIntent = .constants.renderingIntents.Any

          .convertProfile = "sRGB IEC61966-2.1"

          .convertIntent = .constants.renderingIntents.Document

          .embed = True

          .preserveBlack = False

          .useBlackPointCompensation = True

          .action = .constants.actions.Convert

     End With

 

     For i = 0 to PDDoc.GetNumPages - 1

          result = jso.colorConvertPage(i, ????, ????)

          MsgBox(result)

     Next

 

End If

Everything up to the call to jso.colorConvertPage works fine.  However, as stated, no method that I've tried to pass the toRGB object as an array member (as called for by the second "actions" parameter) has worked.  These include declaring the variable as an array and using the Array function.  Nor have I been able to pass an empty array for the third "inkActions" parameter without throwing an error.

Interestingly, passing the toRGB object itself, directly, as both parameters does not raise any errors.  However, the function then returns a null value and no conversion actually takes place.

Hi Droptix,

I'm glad you got it working.  What method did you wind up using?

Yes, the JavaScript function could certainly be made much more versatile by rewriting it to accept the conversion profile and other of the colorConvertAction's properties as arguments.  I was mainly just doing a quick retool of the SDK documentation example by way of illustration.

The thing I'm trying to ascertain in the VBscript is whether or not it is possible to successfully call colorConvertPage from an external automation script using the JSObject bridge (i.e., accomplish the same thing that the JavaScript example does without having to first install the folder level script.)

Hi Droptix,

I tested your code, and yes, it did work for me (with the exception noted below.)  I see that my mistake was trying to call colorConvertPage as a method of the JSObject, itself, rather than as a method of a JavaScript Doc opened through the JSObject.

I'm not quite certain what you're trying to do with the goto loop in your batch file.  Do you have multiple .pdf files that need converting, or is it just that single file with multiple pages?

In any event, given the single call to GrayConversion2.vbs in the .bat, the following simple modifications to your .vbs should work (but, again, see the exception, afterward.)  Modifications are in red:

Set argv = Wscript.Arguments

inFile = argv(0)
outFile = argv(1)
arrPages = Split(argv(2), ",")

Set App = CreateObject("AcroExch.App")
Set PDDoc = CreateObject("AcroExch.PDDoc")

' open the PDF to get access to the JavaScript object
PDDoc.Open(inFile)

Set jso = PDDoc.GetJSObject

' now open the file again, but using JSObject
Set doc = jso.app.openDoc(inFile)

' do color conversion
Set target = doc.getColorConvertAction
target.matchAttributesAny = -1
target.matchSpaceTypeAny = Not target.constants.spaceFlags.AlternateSpace
target.matchIntent = target.constants.renderingIntents.Any
target.convertProfile = "Dot Gain 15%"
target.convertIntent = target.constants.renderingIntents.Document
target.embed = True
target.preserveBlack = False
target.useBlackPointCompensation = True
target.action = target.constants.actions.Convert

' convert array of Pages (adjusting for 0 first page) to gray

For i = 0 to Ubound(arrPages)

     doc.colorConvertPage arrPages(i)-1, Array(target), Array()

Next

' save converted document to `outFile`
doc.saveAs(outFile)

doc.closeDoc(True)

' close document
PDDoc.Close

' exit and close Acrobat
App.Exit

' clean up
Set PDDoc = Nothing
Set App = Nothing

That works when run from the .bat as you have it, except:  The call to colorConvertPage fails on the fifth call for me each time.  I'm using a test .pdf that I created, and I've tried varying the order and number of the pages to be converted.  It doesn't appear to be anything specific to the content of the .pdf.  After four successful calls (with the conversion visiblly completed,) the method fails on the fifth call and gives a "Server threw an exception" error.  I must then hard-quit Acrobat from the Task Manager to be able to test the script again.