Image resolution in InDesign CS4 js

Question

Hi, is it possible to find out image resolution directly from InDesign, or do I have to open the file in Photoshop to do it.
Thank you.
Yulia

Answer 1

var doc = app.activeDocument;
var graphics = doc.allGraphics;
var image, horRes, verRes;
for (var i = 0; i < graphics.length; i++) {
     image = graphics[i];
     try {
          // The resolution of a graphic after it has been resized.
          horEffRes = Math.round(image.effectivePpi[0]);
          verEffRes = Math.round(image.effectivePpi[1]);
          // The native resolution of a placed graphic.
          horActRes = Math.round(image.actualPpi[0]);
          verActRes = Math.round(image.actualPpi[1]);
          $.writeln((i+1) + " - " + image.itemLink.name);
          $.writeln("Effective resolution - " + horEffRes + "x" + verEffRes + " ppi");
          $.writeln("Actual resolution - " + horActRes + "x" + verActRes + " ppi");
     catch (err) {
          // vector graphic
          $.writeln((i+1) + " - " + image.itemLink.name + " - Resolution is unavailable");
}