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Angular 5+ PDF Viewer

downloads npm version Gitter PayPal donate button

PDF Viewer Component for Angular 5+

Demo page

https://vadimdez.github.io/ng2-pdf-viewer/

Stackblitz Example

https://stackblitz.com/edit/ng2-pdf-viewer

Blog post

https://medium.com/@vadimdez/render-pdf-in-angular-4-927e31da9c76

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"

[render-text-mode]

Property Type Required
[render-text-mode] RenderTextMode Optional

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

Controls if the text layer is enabled, and the selection mode that is used.

0 = RenderTextMode.DISABLED. - disable the text selection layer

1 = RenderTextMode.ENABLED. - enables the text selection layer

2 = RenderTextMode.ENHANCED - enables enhanced text selection

[render-text-mode]="1"

[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/[email protected]/cmaps/

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

[show-borders]

Property Type Required
[show-borders] boolean Optional

Show page borders

[show-borders]="true"

(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)"

(text-layer-rendered)

Property Type Required
(text-layer-rendered) callback Optional

Get event when a text layer is rendered.

Define callback in your component:

textLayerRendered(e: CustomEvent) {
  console.log('(text-layer-rendered)', e);
}

And then bind it to <pdf-viewer>:

(text-layer-rendered)="textLayerRendered($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
  });
}

Contribute

See CONTRIBUTING.md

License

MIT Β© Vadym Yatsyuk

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