Resize Image script

This sets the image frame to the page margins. To use doScript you have to wrap your code in a function and call the function in the doScript method. For getting and setting styles I call a separate function that checks if the style I’m creating already exists—makeObjStyle():

app.doScript(fitImage, ScriptLanguage.JAVASCRIPT, undefined, UndoModes.ENTIRE_SCRIPT, 'Fit Image');



function fitImage(){
    app.activeDocument.zeroPoint = [0,0]; 

    //makes a new style or uses the picture style if it already exists
    var oStyle = makeObjStyle(app.activeDocument, "picture")
    
    //a selected frame
    var frame = app.activeDocument.selection[0];

    //gets the page bounds and the top margin assumes margins are equal
    var pb = frame.parentPage.bounds;
    var m = frame.parentPage.marginPreferences.top;

    //set the frame’s bounds to the margins
    frame.geometricBounds = [pb[0]+m, pb[1]+m, pb[2]-m, pb[3]-m];

    //fit the image and then the frame to the image
    frame.fit(FitOptions.PROPORTIONALLY);
    frame.fit(FitOptions.FRAME_TO_CONTENT);

    frame.appliedObjectStyle = oStyle;
}


/**
* Makes a new named ObjectStyle or returns an existing style 
* @ param the document to add the style to 
* @ param style name 
* @ return the new object style 
*/
function makeObjStyle(d, n){
    if (d.objectStyles.itemByName(n).isValid) {
        return d.objectStyles.itemByName(n);
    } else {
        return d.objectStyles.add({name:n});
    }
}