Angular 14 ngx-capture Example to Capture Screenshot of HTML Elements as PNG Image in TypeScript

Welcome folks today in this blog post we will be capturing screenshot of html elements in browser and download it as png image in angular. All the full source code of the application is shown below.

Get Started

In order to get started you need to make a new angular project using the below command as shown below

ng new sampleapp

cd sampleapp

npm i ngx-capture

And after that you will be seeing the below directory structure of the angular app as shown below

And now we need to go to app.module.ts file and copy paste the following code

app.module.ts

import { NgModule } from "@angular/core";
import { BrowserModule } from "@angular/platform-browser";
import { FormsModule } from "@angular/forms";

import { AppComponent } from "./app.component";
import { NgxCaptureModule } from 'ngx-capture';

@NgModule({
  imports: [BrowserModule, FormsModule, NgxCaptureModule],
  declarations: [AppComponent],
  bootstrap: [AppComponent]
})
export class AppModule {}

import { NgModule } from "@angular/core";

import { BrowserModule } from "@angular/platform-browser";

import { FormsModule } from "@angular/forms";

import { AppComponent } from "./app.component";

import { NgxCaptureModule } from 'ngx-capture';

@NgModule({

imports: [BrowserModule, FormsModule, NgxCaptureModule],

declarations: [AppComponent],

bootstrap: [AppComponent]

})

export class AppModule {}

As you can see we are importing the ngx-capture module at the top and then we are adding it inside the imports array.

And now we need to go to app.component.html file and copy paste the following code

app.component.html

<div #screen>
	<h1>John Williamson Latham</h1>
	<p>
		Start editing to see some magic happen :)
	</p>
</div>
<h2>My Capture:</h2>
<img src="{{img}}" />

<h1>John Williamson Latham</h1>

<p>

Start editing to see some magic happen :)

</p>

</div>

<h2>My Capture:</h2>

As you can see we have the html5 template in which we have the heading and the paragraph and then we have the img rendering the html template as shown below

app.component.css

p {
  font-family: Lato;
}
img {
  border: 1px gray solid;
}

p {

font-family: Lato;

}

img {

border: 1px gray solid;

}

And now we need to go to app.component.ts file and copy paste the following code

app.component.ts

import { Component, ViewChild, OnInit } from "@angular/core";
import { NgxCaptureService } from "ngx-capture";
import { tap } from "rxjs/operators";

@Component({
  selector: "my-app",
  templateUrl: "./app.component.html",
  styleUrls: ["./app.component.css"]
})
export class AppComponent implements OnInit {
  name = "Angular";
  img = "";

  @ViewChild("screen", { static: true }) screen: any;

  constructor(private captureService: NgxCaptureService) {}

  ngOnInit() {
    this.captureService
      .getImage(this.screen.nativeElement, true)
      .pipe(
        tap(img => {
          this.img = img;
          console.log(img);
        })
      )
      .subscribe();
  }
}

import { Component, ViewChild, OnInit } from "@angular/core";

import { NgxCaptureService } from "ngx-capture";

import { tap } from "rxjs/operators";

@Component({

selector: "my-app",

templateUrl: "./app.component.html",

styleUrls: ["./app.component.css"]

})

export class AppComponent implements OnInit {

name = "Angular";

img = "";

@ViewChild("screen", { static: true }) screen: any;

constructor(private captureService: NgxCaptureService) {}

ngOnInit() {

this.captureService

.getImage(this.screen.nativeElement, true)

.pipe(

tap(img => {

this.img = img;

console.log(img);

})

)

.subscribe();

}

As you can see we are importing the ngx-capture service and then we are taking the screenshot of the html template and saving it as png image file.