Preflight color image resolution warning

I've designed a book cover in ID CS3 for a client who wants to publish her book with Createspace.com. I've exported the file to pdf per Createspace's speciifcation. When doing a preflight in Acrobat 9, using a profile provided by Createspace, I get a warning that the graphics are less than 280 ppi ,specifcally 149 ppi which is about half of what they are in reality (ID preflight specifies that my two graphics are 300 x 300 ppi). Why am I getting this figure from Acrobat? Could it be that the Createspace profile expects a higher resolution than 300 ppi (although their file preparation instructions specify 300 ppi)?

Hi guys,
I offer the following approach to solve the problem:
var myDoc = app.activeDocument;
var myAllGraphics = myDoc.allGraphics;
var myGraphic = myAllGraphics[0];
var myLink = myGraphic.itemLink;
var myLinkXmp = myLink.linkXmp;
var myCreator = myLink.linkXmp.creator;
if (myCreator.indexOf("Adobe Illustrator") != -1) {
    alert("The first link was created in Illustrator");
else if (myCreator.indexOf("Adobe Photoshop") != -1) {
    try {
        var myXres = myGraphic.actualPpi[0];
        var myYres = myGraphic.actualPpi[1];
    catch(err) {
        if (err == "Error: A value is not available for this type of image.") {
            var myXres = myLinkXmp.getProperty("http://ns.adobe.com/tiff/1.0/", "tiff:XResolution");
            var myYres = myLinkXmp.getProperty("http://ns.adobe.com/tiff/1.0/", "tiff:YResolution");
    alert("Resolution of the first link:\nX: " + eval(myXres) + " ppi\nY: " + eval(myYres) + " ppi");
Kasyan

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>
>
>Nikola Viereckel - 09:45pm Dec 9, 2007 Pacific
>
>Hi - I have recently discovered the above error message when I
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>
>Any ideas? I the only thoughts I have had is to reinstall
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>Cheers
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>
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>
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>
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