var doc = app.documents.add();
var page = doc.pages.item(0);
var tf = page.textFrames.add({
	geometricBounds: [12.7, 12.7, 100, 210],
	contents: "Hi God, it's me - Jesus.",
});

tf.paragraphs.item(0).pointSize = 42;
tf.fit(FitOptions.FRAME_TO_CONTENT);

doc.documentPreferences.pageWidth = tf.geometricBounds[3] + 12.7;
doc.documentPreferences.pageHeight = tf.geometricBounds[2] + 12.7;

var new_pw = doc.documentPreferences.pageWidth;
var new_ph = doc.documentPreferences.pageHeight;

tf.geometricBounds = [12.7, 12.7, new_ph - 12.7, new_pw - 12.7];

var doc;
if (app.documents.length > 0) {
	doc = app.activeDocument;
} else {
	doc = app.documents.add();
}

/**
 *  A document has always a page
 *  so we don't need to create one
 */
var page = doc.pages.item(0);
// could also be
// var page = doc.pages.lastItem();
// now lets do some stuff on that page

var gb = [10, 10, 50, 50]; // some bounds
page.ovals.add({ geometricBounds: gb }); // add an oval
// increase x values
gb[1] += 10;
gb[3] += 10;
page.rectangles.add({ geometricBounds: gb }); // add an rectangle
// increase x values again
gb[1] += 10;
gb[3] += 10;
page.textFrames.add({ geometricBounds: gb }); // add an textFrame

// a page has not only ovals and so on
// it also has pageItems
// loop them
for (var i = 0; i < page.pageItems.length; i++) {
	// now get the y value
	var y = page.pageItems[i].geometricBounds[1];
	// and move them
	page.pageItems[i].move([10 + 10 * i, y]);
}

// now duplicate the page
page.duplicate();

var doc = app.documents.add({});
var page = doc.pages.item(0);
page.marginPreferences.properties = {
	top: 30,
	left: 30,
	right: 30,
	bottom: 30,
};

/**
 *  Lets build a doc
 */
main();
function main() {
	// add a doc
	var doc = app.documents.add();
	// lets store some data in an object for better handling
	meta = {
		pw: 200,
		ph: 200,
		top: 20,
		left: 20,
		bottom: 20,
		right: 20,
		gutter: 5,
		textColumnCount: 5,
	};

	// have a look at the build function below
	doc_build(doc, true, false, meta);

	// now lets make something with those pages
	var count = 0; // counter
	var range = 10; // until
	var frames = []; // to store the textFrames
	// now loop it
	while (count < range) {
		// the first page is always there
		// so we have to check if we are at index 0
		var page;
		if (count != 0) {
			page = doc.pages.add(); // if not add a page
		} else {
			page = doc.pages[0]; // we are at index 0 take the existing page
		}
		// apply a master spread
		page.appliedMaster = doc.masterSpreads.item(0);
		// add a textFrame and push it into an array
		// for better handling
		frames.push(page.textFrames.add());
		// now get the margins from the page
		// the get bounds function is part of the
		// Scripting Tutorial Hello World from the SDK
		frames[count].geometricBounds = myGetBounds(doc, page);
		// once again we have to check if we are at index 0
		// because the textFrame 0 cant have a previous text frame
		// if we are not at 0 connect the actual textFrame with the previous
		if (count != 0) {
			frames[count].previousTextFrame = frames[count - 1];
		}
		// now we change the gutter on every second text frame
		// just for the fun of it.
		// get the gutter from the page
		// and give the textFrame the same margins
		if (count % 2 == 0) {
			frames[count].textFramePreferences.properties = {
				textColumnCount: page.marginPreferences.columnCount / 2,
				textColumnGutter: page.marginPreferences.columnGutter,
			};
		}
		//increment the count for the next loop
		count++;
	}
	// add some placeholder text
	frames[0].contents = TextFrameContents.placeholderText;
	// The End
	return 0;
}

/**
 *  Lets build a document
 *  with lots of preferences
 */
function doc_build(doc, makeColumns, facingPages, meta) {
	doc.layers.item(0).name = "the standard layer";
	doc.layers.add({ name: "a new layer" });
	if (facingPages) {
		doc.documentPreferences.facingPages = true;
	} else {
		doc.documentPreferences.facingPages = false;
	}

	// set some view parameters
	doc.viewPreferences.properties = {
		horizontalMeasurementUnits: MeasurementUnits.MILLIMETERS,
		verticalMeasurementUnits: MeasurementUnits.MILLIMETERS,
	};
	// set the page size and bleed box
	doc.documentPreferences.properties = {
		pageWidth: meta.pw,
		pageHeight: meta.ph,
		documentBleedBottomOffset: 3,
		documentBleedTopOffset: 3,
		documentBleedInsideOrLeftOffset: 3,
		documentBleedOutsideOrRightOffset: 3,
	};

	// the baseline settings
	doc.gridPreferences.properties = {
		baselineStart: meta.top,
	};

	// how big are the steps
	doc.gridPreferences.baselineDivision = "15pt";

	// lets create some master spreads
	var master_spread1 = doc.masterSpreads.item(0).pages.item(0); // edit the master spreads

	master_spread1.marginPreferences.properties = {
		right: meta.right,
		top: meta.top,
		left: meta.left,
		bottom: meta.bottom + 10,
		columnGutter: meta.gutter * 2,
	};

	var master_spread2 = doc.masterSpreads.item(0).pages.item(1); //edit the other master spread

	master_spread2.marginPreferences.properties = {
		right: meta.right,
		top: meta.top,
		left: meta.left,
		bottom: meta.bottom,
		columnGutter: meta.gutter,
	};

	if (makeColumns) {
		master_spread1.marginPreferences.columnCount = meta.textColumnCount * 2;
		master_spread2.marginPreferences.columnCount = meta.textColumnCount;
	}
} // end make doc

// part of
//ImprovedHelloWorld.jsx from InDesign scripting SDK
//An InDesign CS6 JavaScript

function myGetBounds(myDocument, myPage) {
	var myPageWidth = myDocument.documentPreferences.pageWidth;
	var myPageHeight = myDocument.documentPreferences.pageHeight;
	if (myPage.side == PageSideOptions.leftHand) {
		var myX2 = myPage.marginPreferences.left;
		var myX1 = myPage.marginPreferences.right;
	} else {
		var myX1 = myPage.marginPreferences.left;
		var myX2 = myPage.marginPreferences.right;
	}
	var myY1 = myPage.marginPreferences.top;
	var myX2 = myPageWidth - myX2;
	var myY2 = myPageHeight - myPage.marginPreferences.bottom;
	return [myY1, myX1, myY2, myX2];
}