VadimDezAngular PDF Viewer
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
- Usage
- Options
- Render local PDF file
- Set custom path to the worker
- Search in the PDF
- Contribute
Install
Angular >= 12
npm install ng2-pdf-viewerPartial Ivy compilated library bundles.
Angular >= 4
npm install ng2-pdf-viewer@^7.0.0Angular < 4
npm install ng2-pdf-viewer@~3.0.8Usage
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: `
<pdf-viewer [src]="pdfSrc"
[render-text]="true"
[original-size]="false"
style="width: 400px; height: 500px"
></pdf-viewer>
`
})
export class AppComponent {
pdfSrc = "https://vadimdez.github.io/ng2-pdf-viewer/assets/pdf-test.pdf";
}Options
- [src]
- [(page)]
- [stick-to-page]
- [external-link-target]
- [render-text]
- [render-text-mode]
- [rotation]
- [zoom]
- [zoom-scale]
- [original-size]
- [fit-to-page]
- [show-all]
- [autoresize]
- [c-maps-url]
- [show-borders]
- (after-load-complete)
- (page-rendered)
- (text-layer-rendered)
- (error)
- (on-progress)
[src]
| Property | Type | Required |
|---|---|---|
| [src] | string, object, UInt8Array | Required |
Pass pdf location
[src]="'https://vadimdez.github.io/ng2-pdf-viewer/assets/pdf-test.pdf'"For more control you can pass options object to [src]. See other attributes for the object here.
Options object for loading protected PDF would be:
{
url: 'https://vadimdez.github.io/ng2-pdf-viewer/assets/pdf-test.pdf',
withCredentials: true
}[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"If you want that the two way data binding actually updates your page variable on page change/scroll - you have to be sure that you define the height of the container, for example:
pdf-viewer {
height: 100vh;
}[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
blanknoneselfparenttop[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"[zoom-scale]
| Property | Type | Required | ||
|---|---|---|---|---|
| [zoom-scale] | *'page-width'\ | 'page-fit'\ | 'page-height'* | Optional |
Defines how the Zoom scale is computed when [original-size]="false", by default set to 'page-width'.
'page-width' with zoom of 1 will display a page width that take all the possible horizontal space in the container
'page-height' with zoom of 1 will display a page height that take all the possible vertical space in the container
'page-fit' with zoom of 1 will display a page that will be scaled to either width or height to fit completely in the container
[zoom-scale]="'page-width'"[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.
[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)"(pages-initialized)
| Property | Type | Required |
|---|---|---|
| (pages-initialized) | callback | Optional |
Get event when the pages are initialized.
Define callback in your component:
pageInitialized(e: CustomEvent) {
console.log('(pages-initialized)', e);
}And then bind it to <pdf-viewer>:
(pages-initialized)="pageInitialized($event)"(text-layer-rendered)
| Property | Type | Required |
|---|---|---|
| (text-layer-rendered) | callback | Optional |
Get event when a text layer is rendered.
Define callback in your component:
textLayerRendered(e: CustomEvent) {
console.log('(text-layer-rendered)', e);
}And then bind it to <pdf-viewer>:
(text-layer-rendered)="textLayerRendered($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 cdn.jsdelivr.net.
In your code update path to the worker to be for example /pdf.worker.mjs
(window as any).pdfWorkerSrc = '/pdf.worker.mjs';This should be set before pdf-viewer component is rendered.
If you ever have a (super rare) edge case where you run in an environment that multiple components are somehow loaded within the same web page, sharing the same window, but using different versions of pdf.worker, support has been added. You can do the above, except that you can append the specific version of pdfjs required and override the custom path just for that version. This way setting the global window var won't conflict.
(window as any)["pdfWorkerSrc2.14.305"] = '/pdf.worker.mjs';Search in the PDF
Use eventBus for the search functionality.
In your component's ts file:
- Add reference to
pdf-viewercomponent, - then when needed execute
search()like this:
@ViewChild(PdfViewerComponent) private pdfComponent: PdfViewerComponent;
search(stringToSearch: string) {
this.pdfComponent.eventBus.dispatch('find', {
query: stringToSearch, type: 'again', caseSensitive: false, findPrevious: undefined, highlightAll: true, phraseSearch: true
});
}Contribute
Donation
If this project help you reduce time to develop, you can give me a cup of tea :)
