function findTextFrames(doc, targetHeight, errorMargin) {
var foundTextFrames = ;
for (var i = 0; i < doc.pages.length; i ) {
var page = doc.pages ;
for (var j = 0; j < page.textFrames.length; j ) {
var textFrame = page.textFrames ;
if (Math.abs(textFrame.geometricBounds – textFrame.geometricBounds ) >= targetHeight – errorMargin &&
Math.abs(textFrame.geometricBounds – textFrame.geometricBounds )