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Build a Canva Pro PDF Editor in Browser Using Mozilla PDF.js & PDF-LIB in Javascript
Dec 15, 2025
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https://procodestore.com/index.php/product/build-a-canva-pro-pdf-editor-in-browser-using-mozilla-pdf-js-pdf-lib-in-javascript/
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https://youtu.be/Bon8Pm1gbX8
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0:00
Uh hey guys in this video I'll show you
0:02
I built out a Canva clone pro PDF editor
0:07
directly in the browser using Mosilla
0:10
PDFJS library and PDF lib library. So
0:13
this is the actual project guys. You can
0:15
just see almost 2200 lines of code. This
0:18
is there. It's written entirely in HTML
0:21
CSS and JavaScript. So it's a single
0:24
page SAS kind of an software as a
0:26
service application. So it doesn't have
0:29
any back end. Everything runs in
0:31
directly in the browser. So this is
0:33
actually a single file index.html. As
0:36
you can see all the code is present in
0:38
in this single file. So we just written
0:42
HTML, CSS and JavaScript. So almost 2200
0:45
lines of code. So it's an ultimate PDF
0:47
editor. It has all the features. Let me
0:50
show you the demo. Uh if you want to
0:52
purchase this, I have given the link in
0:54
the description. You can directly
0:55
purchase this. So once you purchase it,
0:57
you will get the source code
0:59
automatically downloaded from Google
1:00
drive and you can easily run this using
1:04
the live server extension in VS code and
1:06
it's very easy to deploy this
1:08
application as well. So this is actually
1:10
the PDF editor. First of all, you simply
1:14
select the PDF file that you want to
1:15
edit. After that, it will show you the
1:17
live preview, the total number of pages.
1:20
Then you can individually select and
1:22
then you have the pen operator to
1:24
highlight
1:25
annotate anything really easy as you can
1:28
just see right here. You can go to the
1:30
next page and this we have also have the
1:32
color picker. Just change the color and
1:35
then you can again highlight something.
1:37
You also have the support for adding
1:39
your images. Simply select whatever
1:42
image and you can just place it
1:44
accordingly.
1:47
Adjust the size as well.
1:50
And then you also have the option to
1:52
comment at any page number. So this
1:55
comment will be inserted as you can just
1:57
see right here. You also have the
1:58
capability to add notes as well. Just
2:02
click and at that location really easy.
2:06
So it will save you a lot of time
2:08
because it's a Canva clone. All the
2:10
features are there for adding pages as
2:12
well. So if you want to add a blank
2:14
page, you simply select this button
2:16
right here.
2:18
So now this will add a blank page inside
2:21
your PDF file or you can add the text
2:23
here. So you can basically add whatever
2:26
text you want to add right here multiple
2:29
text as you can just see here. You can
2:32
even add image as well. So just place it
2:35
accordingly. And now the PDF file
2:38
contains three pages. So now once you
2:40
are happy with the changes you can click
2:41
the export PDF button. So once you click
2:44
this all the changes will be reflected
2:46
back. So all the highlighting text
2:49
images you added the pages are
2:52
successfully saved. So this is actually
2:54
a single page application. So it's a
2:56
Canva clone PDF editor. If you are
2:58
interested in this, I have given the
3:00
link in the description. You can
3:01
directly purchase it. Apart from that,
3:04
if you want to actually hide something,
3:06
you can use this operator which is white
3:09
out. So once you select this, you simply
3:11
select whatever text that you want to
3:13
hide. So that text will be hidden. So
3:17
really easy. So many a times in PDF
3:20
editing you do need to hide something.
3:23
So that this operator comes into the
3:25
picture. You simply select and that text
3:27
will be hidden. So you can go to the
3:31
next page. If you want to highlight
3:33
hides this one as well and then again
3:36
click export PDF. After that that text
3:38
will be hidden or deleted. So really
3:42
easy the PDF highlighting, annotating,
3:46
adding text, images. So all the editing
3:49
functionalities are there in this single
3:51
page application. If you are interested
3:52
guys,
3:54
you can actually use this for building
3:57
this. We are using
4:00
these two libraries
4:03
which are PDF. First of all, Mozilla
4:06
PDFJS which is a JavaScript uh PDF
4:11
library and also we are using this
4:14
library as well. PDF lip which also is a
4:18
JavaScript library for modifying PDF
4:21
document. So we are actually using these
4:23
two libraries to building out this
4:25
complete PDF Canva clone PDF editor and
4:29
generator. So if you you can even add a
4:32
duplicate page page as well or delete
4:35
any certain page. So if you don't want
4:37
this first page, you can click the
4:38
delete delete page button. You can even
4:40
duplicate a page as well. So now
4:43
everything will be duplicated. So all
4:45
these functionalities are there. So
4:48
definitely purchase it if you like it.
4:50
You can easily modify the source code or
4:53
add additional features as well. So
4:55
almost 2200 lines of code is there.
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