ByteScout Premium Suite – JavaScript – Draw symbols in pdf with pdf generator sdk for javascript

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ByteScout Premium Suite – JavaScript – Draw symbols in pdf with pdf generator sdk for javascript

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ByteScout-Premium-Suite-JavaScript-Draw-symbols-in-pdf-with-pdf-generator-sdk-for-javascript.pdf

How to draw symbols in pdf with pdf generator sdk for javascript in JavaScript using ByteScout Premium Suite

Learn to code in JavaScript to draw symbols in pdf with pdf generator sdk for javascript with this step-by-step tutorial

ByteScout simple and easy to understand tutorials are planned to describe the code for both JavaScript beginners and advanced programmers. What is ByteScout Premium Suite? It is the set that includes 12 SDK products from ByteScout including tools and components for PDF, barcodes, spreadsheets, screen video recording. It can help you to draw symbols in pdf with pdf generator sdk for javascript in your JavaScript application.

This prolific sample source code in JavaScript for ByteScout Premium Suite contains various functions and other necessary options you should do calling the API to draw symbols in pdf with pdf generator sdk for javascript. Simply copy and paste in your JavaScript project or application you and then run your app! Enjoy writing a code with ready-to-use sample JavaScript codes.

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checkdatauri.js

      	// checks if we have datauri support in current browser
        // if we have support for datauri support then we can stream generated PDF right into the browser
        // otherwise we should use Downloadify script to allow user to save PDF file
	function CheckDataURISupport(){

	var result = true;
	var checkDataURISupportImage = new Image();

	checkDataURISupportImage.onload = checkDataURISupportImage.onerror = function(){
		if(this.width != 1 || this.height != 1){
			result = false;
		}
	}
	checkDataURISupportImage.src = "data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=";
	// check if we have datauri support in current browser - end

		return result;
	}

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createpdf.js

      // function that creates BytescoutPDF instance (defined in BytescoutPDF.js script which have to be included into the same page)
// then calls API methods and properties to create PDF document
// and returns created BytescoutPDF object instance
// this CreatePDF() function is called from Sample.html
// IsInternetExplorer8OrLower parameter indicates if we use IE8 or lower so we CAN'T use images (as it requires HTML5 Canvas available in IE9 or higher). Other browsers should be working fine

// IMPORTANT ABOUT IMAGES: 
// When using Firefox or IE, pdf generation may fail because images are not accessible when pdf generation works
// the solution for this issue is to preload images in main HTML document before running PDF generation
// to preload images, put them into hidden div block "pdfreportimages" - you can see it in the sample.html right after <body> opening tag


function CreatePDF(IsInternetExplorer8OrLower) {

    // create BytescoutPDF object instance
    var pdf = new BytescoutPDF();

    // set document properties: Title, subject, keywords, author name and creator name
    pdf.propertiesSet("Sample document title", "Sample subject", "keyword1, keyword 2, keyword3", "Document Author Name", "Document Creator Name");

    // add new page
    pdf.pageAdd();

    // set font size
    pdf.fontSetSize(48);

    // set Symbol symbolic font
    pdf.fontSetName('Symbol');

	// info: char table of Symbol font http://en.wikipedia.org/wiki/Symbol_font
    pdf.textAdd(100, 50, '\u0041');
    pdf.textAdd(200, 50, '\u0022');

    // set ZapfDingbats symbolic font
    pdf.fontSetName('ZapfDingbats');

	// info: char table of ZapfDingbats font http://www.unicode.org/charts/PDF/U2700.pdf
    pdf.textAdd(100, 150, "\u2780");
    pdf.textAdd(200, 150, "\u2776");

    // set zapf dingbats built in font to use
    pdf.fontSetName("zapfDingbats");
    pdf.fontSetSize(25);

    // draw symbols, see map of letters to symbols at https://images.google.com/?q=zapf+dingbats+font+symbols
    pdf.textSetBox(10,150,500,300); // define output rectangle
    pdf.textAddToBox("1234567890!@#$%^&*()ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz")

    // set symbol font
    pdf.fontSetName("Symbol");
    pdf.fontSetSize(25);

    // draw symbols, see map of letters to symbols at https://images.google.com/?q=zapf+dingbats+font+symbols
    pdf.textSetBox(10,310,500,800); // define output rectangle
    pdf.textAddToBox("1234567890!@#$%^&*()ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz")



    // return BytescoutPDF object instance
    return pdf;
}