Image not showing in pdf jspdf





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I am having trouble adding image to pdf with jspdf for a while now.



Image is not showing at all, but console doesn't show any errors.



Here is my code, can anyone please tell me where is my mistake:



    var doc = new jsPDF('landscape');

var img = new Image(),
canvas = document.createElement("canvas"),
ctx = canvas.getContext("2d");

img.onload = function () {
ctx.drawImage(img, 0, 0 )
var imgData = canvas.toDataURL('image/jpeg','1.0');
doc.setFontSize(12);
img.src = '/story_content/external_files/Certifikat.jpg';
doc.addImage(imgData, 'png','15','40','200','200');
}

img.src = '/story_content/external_files/Certifikat.jpg';









share|improve this question























  • Check if image is reachable.

    – Just code
    Nov 22 '18 at 5:47











  • @Justcode, Image is reachable, that's not an issue.

    – Dwight
    Nov 22 '18 at 7:19











  • Can you create demo to reproduce the problem?

    – Just code
    Nov 22 '18 at 7:23











  • what is that '15','40','200','200' ?

    – deblocker
    Nov 22 '18 at 8:59











  • Possible duplicate of JSPDF doesn't add images with online src

    – kakugiki
    Feb 2 at 20:30


















0















I am having trouble adding image to pdf with jspdf for a while now.



Image is not showing at all, but console doesn't show any errors.



Here is my code, can anyone please tell me where is my mistake:



    var doc = new jsPDF('landscape');

var img = new Image(),
canvas = document.createElement("canvas"),
ctx = canvas.getContext("2d");

img.onload = function () {
ctx.drawImage(img, 0, 0 )
var imgData = canvas.toDataURL('image/jpeg','1.0');
doc.setFontSize(12);
img.src = '/story_content/external_files/Certifikat.jpg';
doc.addImage(imgData, 'png','15','40','200','200');
}

img.src = '/story_content/external_files/Certifikat.jpg';









share|improve this question























  • Check if image is reachable.

    – Just code
    Nov 22 '18 at 5:47











  • @Justcode, Image is reachable, that's not an issue.

    – Dwight
    Nov 22 '18 at 7:19











  • Can you create demo to reproduce the problem?

    – Just code
    Nov 22 '18 at 7:23











  • what is that '15','40','200','200' ?

    – deblocker
    Nov 22 '18 at 8:59











  • Possible duplicate of JSPDF doesn't add images with online src

    – kakugiki
    Feb 2 at 20:30














0












0








0








I am having trouble adding image to pdf with jspdf for a while now.



Image is not showing at all, but console doesn't show any errors.



Here is my code, can anyone please tell me where is my mistake:



    var doc = new jsPDF('landscape');

var img = new Image(),
canvas = document.createElement("canvas"),
ctx = canvas.getContext("2d");

img.onload = function () {
ctx.drawImage(img, 0, 0 )
var imgData = canvas.toDataURL('image/jpeg','1.0');
doc.setFontSize(12);
img.src = '/story_content/external_files/Certifikat.jpg';
doc.addImage(imgData, 'png','15','40','200','200');
}

img.src = '/story_content/external_files/Certifikat.jpg';









share|improve this question














I am having trouble adding image to pdf with jspdf for a while now.



Image is not showing at all, but console doesn't show any errors.



Here is my code, can anyone please tell me where is my mistake:



    var doc = new jsPDF('landscape');

var img = new Image(),
canvas = document.createElement("canvas"),
ctx = canvas.getContext("2d");

img.onload = function () {
ctx.drawImage(img, 0, 0 )
var imgData = canvas.toDataURL('image/jpeg','1.0');
doc.setFontSize(12);
img.src = '/story_content/external_files/Certifikat.jpg';
doc.addImage(imgData, 'png','15','40','200','200');
}

img.src = '/story_content/external_files/Certifikat.jpg';






javascript jspdf






share|improve this question













share|improve this question











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asked Nov 22 '18 at 5:44









DwightDwight

6




6













  • Check if image is reachable.

    – Just code
    Nov 22 '18 at 5:47











  • @Justcode, Image is reachable, that's not an issue.

    – Dwight
    Nov 22 '18 at 7:19











  • Can you create demo to reproduce the problem?

    – Just code
    Nov 22 '18 at 7:23











  • what is that '15','40','200','200' ?

    – deblocker
    Nov 22 '18 at 8:59











  • Possible duplicate of JSPDF doesn't add images with online src

    – kakugiki
    Feb 2 at 20:30



















  • Check if image is reachable.

    – Just code
    Nov 22 '18 at 5:47











  • @Justcode, Image is reachable, that's not an issue.

    – Dwight
    Nov 22 '18 at 7:19











  • Can you create demo to reproduce the problem?

    – Just code
    Nov 22 '18 at 7:23











  • what is that '15','40','200','200' ?

    – deblocker
    Nov 22 '18 at 8:59











  • Possible duplicate of JSPDF doesn't add images with online src

    – kakugiki
    Feb 2 at 20:30

















Check if image is reachable.

– Just code
Nov 22 '18 at 5:47





Check if image is reachable.

– Just code
Nov 22 '18 at 5:47













@Justcode, Image is reachable, that's not an issue.

– Dwight
Nov 22 '18 at 7:19





@Justcode, Image is reachable, that's not an issue.

– Dwight
Nov 22 '18 at 7:19













Can you create demo to reproduce the problem?

– Just code
Nov 22 '18 at 7:23





Can you create demo to reproduce the problem?

– Just code
Nov 22 '18 at 7:23













what is that '15','40','200','200' ?

– deblocker
Nov 22 '18 at 8:59





what is that '15','40','200','200' ?

– deblocker
Nov 22 '18 at 8:59













Possible duplicate of JSPDF doesn't add images with online src

– kakugiki
Feb 2 at 20:30





Possible duplicate of JSPDF doesn't add images with online src

– kakugiki
Feb 2 at 20:30












1 Answer
1






active

oldest

votes


















0














The addImage method:



function(HTMLImageElement,HTMLCanvasElement: imageData, Enum: format, x, y, w, h, String: alias, Enum: compression, rotation)


If You pass the canvas, addImage will do the canvas.toDataURLfor You.



Moreover: if You already have a jpeg, why You need to convert it to png? This would be a lot faster:



addImage(img, "jpg", 15, 40, 200, 200, img.src, "FAST");


A note aside: are You sure the image is available before You are saving the pdf? The most common mistake is to forget that the image download is asynchronous, but this is just guessing, because You didn't posted that part of Your code.



If the image is already in the browser cache, try adding:



if(img.complete) {
img.onload();
}





share|improve this answer
























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    1 Answer
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    active

    oldest

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    1 Answer
    1






    active

    oldest

    votes









    active

    oldest

    votes






    active

    oldest

    votes









    0














    The addImage method:



    function(HTMLImageElement,HTMLCanvasElement: imageData, Enum: format, x, y, w, h, String: alias, Enum: compression, rotation)


    If You pass the canvas, addImage will do the canvas.toDataURLfor You.



    Moreover: if You already have a jpeg, why You need to convert it to png? This would be a lot faster:



    addImage(img, "jpg", 15, 40, 200, 200, img.src, "FAST");


    A note aside: are You sure the image is available before You are saving the pdf? The most common mistake is to forget that the image download is asynchronous, but this is just guessing, because You didn't posted that part of Your code.



    If the image is already in the browser cache, try adding:



    if(img.complete) {
    img.onload();
    }





    share|improve this answer




























      0














      The addImage method:



      function(HTMLImageElement,HTMLCanvasElement: imageData, Enum: format, x, y, w, h, String: alias, Enum: compression, rotation)


      If You pass the canvas, addImage will do the canvas.toDataURLfor You.



      Moreover: if You already have a jpeg, why You need to convert it to png? This would be a lot faster:



      addImage(img, "jpg", 15, 40, 200, 200, img.src, "FAST");


      A note aside: are You sure the image is available before You are saving the pdf? The most common mistake is to forget that the image download is asynchronous, but this is just guessing, because You didn't posted that part of Your code.



      If the image is already in the browser cache, try adding:



      if(img.complete) {
      img.onload();
      }





      share|improve this answer


























        0












        0








        0







        The addImage method:



        function(HTMLImageElement,HTMLCanvasElement: imageData, Enum: format, x, y, w, h, String: alias, Enum: compression, rotation)


        If You pass the canvas, addImage will do the canvas.toDataURLfor You.



        Moreover: if You already have a jpeg, why You need to convert it to png? This would be a lot faster:



        addImage(img, "jpg", 15, 40, 200, 200, img.src, "FAST");


        A note aside: are You sure the image is available before You are saving the pdf? The most common mistake is to forget that the image download is asynchronous, but this is just guessing, because You didn't posted that part of Your code.



        If the image is already in the browser cache, try adding:



        if(img.complete) {
        img.onload();
        }





        share|improve this answer













        The addImage method:



        function(HTMLImageElement,HTMLCanvasElement: imageData, Enum: format, x, y, w, h, String: alias, Enum: compression, rotation)


        If You pass the canvas, addImage will do the canvas.toDataURLfor You.



        Moreover: if You already have a jpeg, why You need to convert it to png? This would be a lot faster:



        addImage(img, "jpg", 15, 40, 200, 200, img.src, "FAST");


        A note aside: are You sure the image is available before You are saving the pdf? The most common mistake is to forget that the image download is asynchronous, but this is just guessing, because You didn't posted that part of Your code.



        If the image is already in the browser cache, try adding:



        if(img.complete) {
        img.onload();
        }






        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Nov 22 '18 at 9:09









        deblockerdeblocker

        5,30121336




        5,30121336
































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