Text alignment for jsPDF 💥

jspdf.plugin.text-align.js

(function (api, $) {
	'use strict';
	api.writeText = function (x, y, text, options) {
		options = options || {};

		var defaults = {
			align: 'left',
			width: this.internal.pageSize.width
		}

		var settings = $.extend({}, defaults, options);

		// Get current font size
		var fontSize = this.internal.getFontSize();

		// Get the actual text's width
		/* You multiply the unit width of your string by your font size and divide
		 * by the internal scale factor. The division is necessary
		 * for the case where you use units other than 'pt' in the constructor
		 * of jsPDF.
		*/
		var txtWidth = this.getStringUnitWidth(text) * fontSize / this.internal.scaleFactor;

		if (settings.align === 'center')
			x += (settings.width - txtWidth) / 2;
		else if (settings.align === 'right')
			x += (settings.width - txtWidth);

		//default is 'left' alignment
		this.text(text, x, y);

	}

})(jsPDF.API, jQuery);