Ng-pdf-view-annotation NPM

PDF Viewer Component for Angular 5+

Overview

Install

npm install ng2-pdf-viewer --save

Note: For angular 4 or less use version 3.0.8

Usage

In case you're using systemjs see configuration here.

Add PdfViewerModule to your module's imports

import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app/app.component';

import { PdfViewerModule } from 'ng2-pdf-viewer';

@NgModule({
  imports: [BrowserModule, PdfViewerModule],
  declarations: [AppComponent],
  bootstrap: [AppComponent]
})

class AppModule {}

platformBrowserDynamic().bootstrapModule(AppModule);

And then use it in your component

import { Component } from '@angular/core';

@Component({
  selector: 'example-app',
  template: `
  <div>
      <label>PDF src</label>
      <input type="text" placeholder="PDF src" [(ngModel)]="pdfSrc">
  </div>
  <pdf-viewer [src]="pdfSrc" 
              [render-text]="true"
              style="display: block;"
  ></pdf-viewer>
  `
})
export class AppComponent {
  pdfSrc: string = '/pdf-test.pdf';
}

Options

src

Property	Type	Required
src	string, object, UInt8Array	Required

Pass pdf location

[src]="'https://vadimdez.github.io/ng2-pdf-viewer/pdf-test.pdf'"

For more control you can pass options object to [src].

Options object for loading protected PDF would be

{
 url: 'https://vadimdez.github.io/ng2-pdf-viewer/pdf-test.pdf',
 withCredentials: true
}

See more attributes here.

page

Property	Type	Required
page or (page)	number	Required with show-all="false" or Optional with show-all="true"

Page number

[page]="1"

supports two way data binding as well

[(page)]="pageVariable"

stick-to-page

Property	Type	Required
stick-to-page	boolean	Optional

Sticks view to the page. Works in combination with [show-all]="true" and page.

[stick-to-page]="true"

render-text

Property	Type	Required
render-text	boolean	Optional

Enable text rendering, allows to select text

[render-text]="true"

external-link-target

Property	Type	Required
external-link-target	string	Optional

Used in combination with [render-text]="true"

Link target

blank
none
self
parent
top

[external-link-target]="'blank'"

rotation

Property	Type	Required
rotation	number	Optional

Rotate PDF

Allowed step is 90 degree, ex. 0, 90, 180

[rotation]="90"

zoom

Property	Type	Required
zoom	number	Optional

Zoom pdf

[zoom]="0.5"

original-size

Property	Type	Required
original-size	boolean	Optional

if set to true - size will be as same as original document
if set to false - size will be as same as container block

[original-size]="true"

fit-to-page

Property	Type	Required
fit-to-page	boolean	Optional

Works in combination with [original-size]="true". You can show your document in original size, and make sure that it's not bigger then container block.

[fit-to-page]="false"

show-all

Property	Type	Required
show-all	boolean	Optional

Show single or all pages altogether

[show-all]="true"

autoresize

Property	Type	Required
autoresize	boolean	Optional

Turn on or off auto resize.

!Important To make [autoresize] work - make sure that [original-size]="false" and pdf-viewer tag has max-width or display are set.

[autoresize]="true"

c-maps-url

Property	Type	Required
c-maps-url	string	Optional

Url for non-latin characters source maps.

[c-maps-url]="'assets/cmaps/'"

Default url is: https://unpkg.com/pdfjs-dist@2.0.550/cmaps/

To serve cmaps on your own you need to copy node_modules/pdfjs-dist/cmaps to assets/cmaps.

(after-load-complete)

Property	Type	Required
(after-load-complete)	callback	Optional

Get PDF information with callback

First define callback function "callBackFn" in your controller,

callBackFn(pdf: PDFDocumentProxy) {
   // do anything with "pdf"
}

And then use it in your template:

(after-load-complete)="callBackFn($event)"

(page-rendered)

Property	Type	Required
(page-rendered)	callback	Optional

Get event when a page is rendered. Called for every page rendered.

Define callback in your component:

pageRendered(e: CustomEvent) {
  console.log('(page-rendered)', e);
}

And then bind it to <pdf-viewer>:

(page-rendered)="pageRendered($event)

(error)

Property	Type	Required
(error)	callback	Optional

Error handling callback

Define callback in your component's class

onError(error: any) {
  // do anything
}

Then add it to pdf-component in component's template

(error)="onError($event)"

(on-progress)

Property	Type	Required
(on-progress)	callback	Optional

Loading progress callback - provides progress information total and loaded bytes. Is called several times during pdf loading phase.

Define callback in your component's class

onProgress(progressData: PDFProgressData) {
  // do anything with progress data. For example progress indicator
}

Then add it to pdf-component in component's template

(on-progress)="onProgress($event)"

Render local PDF file

In your html template add input:

<input (change)="onFileSelected()" type="file" id="file">

and then add onFileSelected method to your component:

onFileSelected() {
  let $img: any = document.querySelector('#file');

  if (typeof (FileReader) !== 'undefined') {
    let reader = new FileReader();

    reader.onload = (e: any) => {
      this.pdfSrc = e.target.result;
    };

    reader.readAsArrayBuffer($img.files[0]);
  }
}

Set custom path to the worker

By default the worker is loaded from cdnjs.cloudflare.com.

In your code update path to the worker to be for example /pdf.worker.js

(<any>window).pdfWorkerSrc = '/pdf.worker.js';

This should be set before pdf-viewer component is rendered.

Search in the PDF

Use pdfFindController for search functionality.

In your component's ts file:

Add reference to pdf-viewer,
then when needed execute search()

@ViewChild(PdfViewerComponent) private pdfComponent: PdfViewerComponent;

search(stringToSearch: string) {
  this.pdfComponent.pdfFindController.executeCommand('find', {
    caseSensitive: false, findPrevious: undefined, highlightAll: true, phraseSearch: true, query: stringToSearch
  });
}