Convert a image url to pdf using jspdf

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function convertImgToBase64(url)
{
    var canvas = document.createElement('canvas');
    var ctx = canvas.getContext('2d');
    img = document.createElement('img'),
    img.src = url;
    canvas.height = img.height;
    canvas.width = img.width;
    var dataURL = canvas.toDataURL('image/jpeg')
    alert(dataURL);
    canvas = null; 
    return dataURL;
  }

var imageurl = 'http://qph.is.quoracdn.net/main-qimg-ca033a73e2ea858908c44905d4c25f4b?convert_to_webp=true';
var som =convertImgToBase64(imageurl);
doc.addImage(som, 'JPEG', 15, 40, 180, 180);
doc.output('datauristring');

but nothing happens no pdf is generated ? I am getting the correct base64 code in alert box but image is not generated?

Here is my solution for the same problem.

let logo = null;

getDataUri(imgUrl, function(dataUri) {
    logo = dataUri;
    console.log("logo=" + logo);
});

function getDataUri(url, cb)
 {
        var image = new Image();
        image.setAttribute('crossOrigin', 'anonymous'); //getting images from external domain

        image.onload = function () {
            var canvas = document.createElement('canvas');
            canvas.width = this.naturalWidth;
            canvas.height = this.naturalHeight; 

            //next three lines for white background in case png has a transparent background
            var ctx = canvas.getContext('2d');
            ctx.fillStyle = '#fff';  /// set white fill style
            ctx.fillRect(0, 0, canvas.width, canvas.height);

            canvas.getContext('2d').drawImage(this, 0, 0);

            cb(canvas.toDataURL('image/jpeg'));
        };

        image.src = url;
   }

Then to generate the pdf

    var doc = new jsPDF();

    let left = 15;
    let top = 8;
    const imgWidth = 100;
    const imgHeight = 100;

    doc.addImage(logo, 'PNG', left, top, imgWidth, imgHeight);

    doc.output('dataurlnewwindow'); //opens pdf in new tab

Converting an image from a url to pdf � Issue #317 � MrRio/jsPDF , So it is not possible to convert images by getting it's url? what about getting images using addhtml() var pdf = new jsPDF(); pdf. JSPDF framework is a framework which helps to convert an html document into PDF format. To achieve this, we need to first download JSPDF framework. Here, we need to first convert the image into image data and then initialize the JSPDF framework. (Javascript PDF) is the client side solution for generating PDFs.

I have created the following example: open in fiddle

<html>
<meta charset="utf-8" />
<body>
    <div style='font-size:30px'>
        <button style='font-size:50px' onclick="jsPDFimages()">create pdf</button>
    </div>
</body>
</html>
<script src="https://unpkg.com/jspdf@latest/dist/jspdf.min.js"></script>

<script>
    var imagesList 
    const doc = new jsPDF();
    const imagesWidth = []
    const imgDataList = []
    const img = new Image();
    var ImageToLoad = new Image();
    jsPDFimages()
    function getImageFromUrl(url, callback) {

        ImageToLoad.crossOrigin = "Anonymous";

        ImageToLoad.onError = function () {
            console.log('Cannot load image: "' + url + '"');
        };

        ImageToLoad.onload = function () {
            alert("image is loaded");
        }

        ImageToLoad.onload = function () {
            imagesWidth.push({
                width: ImageToLoad.width,
                height: ImageToLoad.height
            })
            callback(ImageToLoad);
        };
        ImageToLoad.src = url;
        createPDF(ImageToLoad)
    }
    function createPDF(imgData) {
        imgDataList.push(imgData)
        var pwidth = doc.internal.pageSize.getWidth();
        var pheight = doc.internal.pageSize.getHeight();
        var maxWidth = pwidth - 40; // Max width for the image
        var maxHeight = pheight - 40;    // Max height for the image
        var ratio = 0;  // Used for aspect ratio
        var width = imgData.width;    // Current image width
        var height = imgData.height;  // Current image height
        // Check if the current width is larger than the max
        if (width > maxWidth) {
            ratio = maxWidth / width;   // get ratio for scaling image
            // $(this).css("width", maxWidth); // Set new width
            // $(this).css("height", height * ratio);  // Scale height based on ratio
            height = height * ratio;    // Reset height to match scaled image
            width = width * ratio;    // Reset width to match scaled image
        }
        // Check if current height is larger than max
        if (height > maxHeight) {
            ratio = maxHeight / height; // get ratio for scaling image
            // $(this).css("height", maxHeight);   // Set new height
            // $(this).css("width", width * ratio);    // Scale width based on ratio
            width = width * ratio;    // Reset width to match scaled image
            height = height * ratio;    // Reset height to match scaled image
        }
        doc.addImage({
            imageData: imgData,
            x: 20,
            y: 5,
            w: width,
            h: height,
            angle: -20
        });
        if (imgDataList.length !== Object.keys(imagesList).length)
            doc.addPage();
        if (imgDataList.length == Object.keys(imagesList).length) {
            doc.save('sample-file.pdf');
            //window.open(doc.output('bloburl'), '_blank');
        }
    }

    function jsPDFimages() {
        imagesList={ "imag1": "https://as2.ftcdn.net/jpg/00/42/98/87/500_F_42988762_JMNpHWOFWnbtCBZeYsRo5PmzD28rIquS.jpg", "imag2": "https://as2.ftcdn.net/jpg/00/42/98/87/500_F_42988762_JMNpHWOFWnbtCBZeYsRo5PmzD28rIquS.jpg" }
        for (var item in imagesList) {
            getImageFromUrl(imagesList[item], createPDF);
        }
    }
</script>

How to Add Multiple Image to PDF Using JSPDF Javascript Code, This is a basic how-totutorial on adding single or multiple images to pdf using jspdf framework. jspdf framework is a frameworkwhich helps to convert an html� I am working on a chrome extension which convert images in html page to pdf.So it is not possible to convert images by getting it's url? what about getting images using addhtml() var pdf = new jsPDF(); pdf.addHTML($("#imageid"),function() { }); pdf.text(35, 25, "Octonyan loves jsPDF"); pdf.output('datauristring'); as fromhtml gives only html

If you prefer the async/await mechanism, you can modify the function in Craig Howard's answer to return a promise:

function getDataUri(url)
{
    return new Promise(resolve => {
        var image = new Image();
        image.setAttribute('crossOrigin', 'anonymous'); //getting images from external domain

        image.onload = function () {
            var canvas = document.createElement('canvas');
            canvas.width = this.naturalWidth;
            canvas.height = this.naturalHeight; 

            //next three lines for white background in case png has a transparent background
            var ctx = canvas.getContext('2d');
            ctx.fillStyle = '#fff';  /// set white fill style
            ctx.fillRect(0, 0, canvas.width, canvas.height);

            canvas.getContext('2d').drawImage(this, 0, 0);

            resolve(canvas.toDataURL('image/jpeg'));
        };

        image.src = url;
    })
}

This makes the code for adding images to the pdf quite compact:

var doc = new jsPDF();

var logo = await getDataUri(imgUrl);
doc.addImage(logo, 'PNG', left, top, imgWidth, imgHeight);

How to Add Images into PDF Document Using jsPDF, How to Add Images into PDF Document Using jsPDF subscribe the pdf page content Duration: 6:33 Posted: Dec 18, 2017 Upload your image to the JPG to PDF converter. Adjust the letter size, orientation, and margin as you wish. Click ‘Create PDF now!’ and wait for the conversion to take place. And that's all there is.

jspdf image to pdf, How to add image from a database, example add images users profiles! Please!!! Read more Duration: 5:41 Posted: Dec 13, 2018 Use the following line of code to instantiate and use the jsPDF object in JavaScript. var doc = new jsPDF(); Generate PDF using JavaScript. The following example shows how to use the jsPDF library to generate PDF file using JavaScript. Specify the content in text() method of jsPDF object. Use the addPage() method to add new page to PDF.

Convert web page to PDF with JavaScript | by Weihui Guo, Another usage of JsPDF is to save multiple photos/images with various sizes and different orientations to a single PDF file. You do not want to ask� I am trying to convert canvas into pdf but i get clean white pdf in result Here is the code, I am not being able to figure out what i am missing.. function HtmlToImage(){ html2canvas(document.

jspdf add image from url, This is a basic how-totutorial on adding single or multiple images to pdf using jspdf framework. jspdf framework is a frameworkwhich helps to convert an html . The PDF can be previewed in a iframe (except Explorer or Edge) or directly downloaded. When the Update preview or the Download buttons are clicked, the PDF is generated using jsPDF and passed to

Comments
  • anyone can be fiddle demo
  • You are missing a semicolon on line 9. jsBin - jsbin.com/bodehabi/1/edit
  • but pdf is not generated?
  • possible duplicate of image to base64 conversion
  • github.com/MrRio/jsPDF/issues/317
  • I get 'Uncaught TypeError: Cannot read property 'nodeType' of null at isDOMElement (jspdf.debug.js:4199) at Object.jsPDFAPI.addImage (jspdf.debug.js:4534)' when I try to use this answer