How to Properly Use Jspdf Library

How to properly use jsPDF library

you can use pdf from html as follows,

Step 1: Add the following script to the header

<script src="https://cdnjs.cloudflare.com/ajax/libs/jspdf/1.3.2/jspdf.min.js"></script>

or download locally

Step 2: Add HTML script to execute jsPDF code

Customize this to pass the identifier or just change #content to be the identifier you need.

 <script>
    function demoFromHTML() {
        var pdf = new jsPDF('p', 'pt', 'letter');
        // source can be HTML-formatted string, or a reference
        // to an actual DOM element from which the text will be scraped.
        source = $('#content')[0];

        // we support special element handlers. Register them with jQuery-style 
        // ID selector for either ID or node name. ("#iAmID", "div", "span" etc.)
        // There is no support for any other type of selectors 
        // (class, of compound) at this time.
        specialElementHandlers = {
            // element with id of "bypass" - jQuery style selector
            '#bypassme': function (element, renderer) {
                // true = "handled elsewhere, bypass text extraction"
                return true
            }
        };
        margins = {
            top: 80,
            bottom: 60,
            left: 40,
            width: 522
        };
        // all coords and widths are in jsPDF instance's declared units
        // 'inches' in this case
        pdf.fromHTML(
            source, // HTML string or DOM elem ref.
            margins.left, // x coord
            margins.top, { // y coord
                'width': margins.width, // max width of content on PDF
                'elementHandlers': specialElementHandlers
            },

            function (dispose) {
                // dispose: object with X, Y of the last line add to the PDF 
                //          this allow the insertion of new lines after html
                pdf.save('Test.pdf');
            }, margins
        );
    }
</script>

Step 3: Add your body content

<a href="javascript:demoFromHTML()" class="button">Run Code</a>
<div id="content">
    <h1>  
        We support special element handlers. Register them with jQuery-style.
    </h1>
</div>

Refer to the original tutorial

See a working fiddle

How to use jsPDF with angular 2

I have done it, after doing lot of R&D , their are few steps to follow as below :
Install :

npm install jspdf --save

typings install dt~jspdf --global --save

npm install @types/jspdf --save

Add following in angular-cli.json:

"scripts": [ "../node_modules/jspdf/dist/jspdf.min.js" ]

html:

<button (click)="download()">download </button>

component ts:

import { Component, OnInit, Inject } from '@angular/core';
import * as jsPDF from 'jspdf'
@Component({
  ...
  providers: [
    { provide: 'Window',  useValue: window }
  ]
})
export class GenratePdfComponent implements OnInit {

  constructor(
    @Inject('Window') private window: Window,
    ) { }

  download() {

        var doc = new jsPDF();
        doc.text(20, 20, 'Hello world!');
        doc.text(20, 30, 'This is client-side Javascript, pumping out a PDF.');
        doc.addPage();
        doc.text(20, 20, 'Do you like that?');

        // Save the PDF
        doc.save('Test.pdf');
    }
}

I cannot use jsPDF with Angular 10

After trying so many different solutions for this issue now I've found that both the addHTML and fromHTML is depreciated in latest versions of jspdf and they are replaced with just html. For those who are seeking for a better solution to work with jspdf and Angular 10 here is what looks working and a better result that I've found so far.

To import jspdf version (2.x.x), just simply do: import { jsPDF } from 'jspdf';.

You won't need to include any of the dependencies into angular.json scripts like you would do in previous versions. And if you add scripts of jspdf or html2canvas insideindex.html, also remove them. By running npm install jspdf it also install the html2canvas which is also dynamically imported by jspdf.

import { Component, OnInit, ViewChild, ElementRef } from '@angular/core';
import { jsPDF } from 'jspdf';

.....

 @ViewChild('couponPage', { static: true }) couponPage: ElementRef;

.......

openPDF(): void {
  const DATA = this.couponPage.nativeElement;
  const doc: jsPDF = new jsPDF("p", "mm", "a4");
  doc.html(DATA, {
     callback: (doc) => {
       doc.output("dataurlnewwindow");
     }
  });
}

Though for me still using doc.html() method, it wouldn't use the
css style that I used for my page.

Typescript - how to correctly use jsPDF in Angular2?

Using jspdf with the latest angular cli version is really easy. Simply install jspdf from npm and use it something like this:

app.component.ts

// Note that you cannot use import jsPDF from 'jspdf' if you 
// don't install jspdf types from DefinitelyTyped
let jsPDF = require('jspdf');
import { Component } from '@angular/core';

@Component({
  selector: 'app-root',
  templateUrl: './app.component.html',
  styleUrls: ['./app.component.css']
})
export class AppComponent {
  title = 'app works!';

  constructor() {
    let doc = new jsPDF();
    doc.text("Hello", 20, 20);
    doc.save('table.pdf');
  }
}

For old versions of angular cli based on systemjs instead of webpack

Here is a link to a description of one way to work with the angular-cli and libraries in umd or plain javascript. It basically involves using declare jsPDF: any together with importing the library in systemjs vendor files.

Using jspdf library How to set a logo on a PDF through API

I use this method

var img = new Image()
    img.src = '../../assets/arrow.png'
    var doc = new jsPDF("p", "pt", "a4")
    doc.addImage(img, 40, 30, 100, 76)   

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