ByteScout PDF Suite – Javascript – Draw text, images and lines in pdf with pdf generator sdk for javascript

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ByteScout PDF Suite – Javascript – Draw text, images and lines in pdf with pdf generator sdk for javascript

printable version:
ByteScout-PDF-Suite-Javascript-Draw-text-images-and-lines-in-pdf-with-pdf-generator-sdk-for-javascript.pdf

How to draw text, images and lines in pdf with pdf generator sdk for javascript in Javascript and ByteScout PDF Suite

Learn to code in Javascript to draw text, images and lines in pdf with pdf generator sdk for javascript with this step-by-step tutorial

Sample source code below will display you how to manage a complex task like draw text, images and lines in pdf with pdf generator sdk for javascript in Javascript. What is ByteScout PDF Suite? It is the bundle that provides six different SDK libraries to work with PDF from generating rich PDF reports to extracting data from PDF documents and converting them to HTML. This bundle includes PDF (Generator) SDK, PDF Renderer SDK, PDF Extractor SDK, PDF to HTML SDK, PDF Viewer SDK and PDF Generator SDK for Javascript. It can help you to draw text, images and lines in pdf with pdf generator sdk for javascript in your Javascript application.

Want to save time? You will save a lot of time on writing and testing code as you may just take the Javascript code from ByteScout PDF Suite for draw text, images and lines in pdf with pdf generator sdk for javascript below and use it in your application. Simply copy and paste in your Javascript project or application you and then run your app! Use of ByteScout PDF Suite in Javascript is also described in the documentation included along with the product.

Trial version of ByteScout PDF Suite is available for free. Source code samples are included to help you with your Javascript app.

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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");

	// set page size
    pdf.pageSetSize(BytescoutPDF.Letter);
    // set page orientation
    pdf.pageSetOrientation(true);

	// add new page
    pdf.pageAdd();

    pdf.fontSetName('Helvetica');
    pdf.fontSetStyle(false, false, false);

    for (var i = 0; i < 5; i++) {
        pdf.fontSetSize(10 + i * 4);
        pdf.textAdd(20 + 70 * i, 20, 'hola');
    }

    pdf.fontSetStyle(false, true, true);
    pdf.textAdd(50, 50, 'hello');
    pdf.fontSetStyle(true, true, true);
    pdf.textAdd(250, 50, 'hello');

    pdf.pageSetOrientation(false);
    pdf.pageAdd();

    pdf.fontSetName('Times-Roman');
    pdf.textAdd(20, 70, 'hello');
    pdf.fontSetStyle(true, false, true);
    pdf.textAdd(100, 70, 'hello');
    pdf.fontSetStyle(false, true, true);
    pdf.textAdd(190, 70, 'hello');
    pdf.fontSetStyle(true, true, true);
    pdf.textAdd(280, 70, 'hello');

    pdf.fontSetName('Courier');
    pdf.textAdd(20, 90, 'hello');
    pdf.fontSetStyle(true, false, false);
    pdf.textAdd(100, 90, 'hello');
    pdf.fontSetStyle(false, true, false);
    pdf.textAdd(190, 90, 'hello');
    pdf.fontSetStyle(true, true, true);
    pdf.textAdd(280, 90, 'hello');

    for (var j = 0; j < 50; j++) {
        pdf.graphicsSetColor(j * 5, 0, 250 - j * 5);
        pdf.graphicsSetLineWidth(1 + j / 25);
        pdf.graphicsDrawLine(20, 120 + j * 4, 120, 120 + j * 4);
    }

    pdf.textAdd(200, 150, 'hello');

    pdf.pageSetOrientation(true);
    pdf.pageAdd();

// we can use images only if we are on IE9 or higher (or non-IE browser)
 if (!IsInternetExplorer8OrLower)
 {

    pdf.imageLoadFromUrl('image1.jpg');
    pdf.imagePlace(20, 40);

    pdf.imageLoadFromUrl('image2.jpg');
    pdf.imagePlace(120, 220);
}
    // return BytescoutPDF object instance
    return pdf;
}