Image not showing in pdf jspdf
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
asked Nov 22 '18 at 5:44
DwightDwight
6
add a comment |
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
asked Nov 22 '18 at 5:44
DwightDwight
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
add a comment |
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
asked Nov 22 '18 at 5:44
DwightDwight
6
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
javascript jspdf
asked Nov 22 '18 at 5:44
DwightDwight
6
asked Nov 22 '18 at 5:44
DwightDwight
6
asked Nov 22 '18 at 5:44
DwightDwight
6
asked Nov 22 '18 at 5:44
DwightDwight
6
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
add a comment |
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
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
add a comment |
1 Answer
1
active
oldest
votes
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();
}
answered Nov 22 '18 at 9:09
deblockerdeblocker
5,12721334
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
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();
}
answered Nov 22 '18 at 9:09
deblockerdeblocker
5,12721334
add a comment |
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();
}
answered Nov 22 '18 at 9:09
deblockerdeblocker
5,12721334
add a comment |
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();
}
answered Nov 22 '18 at 9:09
deblockerdeblocker
5,12721334
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();
}
answered Nov 22 '18 at 9:09
deblockerdeblocker
5,12721334
answered Nov 22 '18 at 9:09
deblockerdeblocker
5,12721334
answered Nov 22 '18 at 9:09
deblockerdeblocker
5,12721334
answered Nov 22 '18 at 9:09
deblockerdeblocker
5,12721334
5,12721334
add a comment |
add a comment |
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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