Image Cropper for Angular

Features

• NgImgEditor Component Injection without being passed ViewContainerRef
• High performance
• Highly configurable and customizable
• Overridable styles
• Fully Supported

Install

1   npm install ng-img-editor --save  
2   
3   or
4
5   yarn add ng-img-editor

Setup

Step 1:

• Import CSS.

1@import "~ng-img-editor/photo-editor.css";

• If you are using angular-cli you can add it to your angular.json

"styles": [
  "styles.scss",
  "node_modules/ng-img-editor/photo-editor.css" // try adding '../' if you're using angular cli before 6
]

Step 2:

• Add NgImgEditorModule to app.module.ts

1import {NgModule} from '@angular/core';
2import {BrowserModule} from '@angular/platform-browser';
3import {AppComponent} from './app.component';
4import {NgImgEditorModule} from "ng-img-editor";
5
6@NgModule({
7  declarations: [
8    AppComponent
9  ],
10  imports: [
11    BrowserModule,
12    NgImgEditorModule,
13  ],
14  providers: [],
15  bootstrap: [AppComponent]
16})
17export class AppModule {
18}
19

Usage

1<input type="file" (change)="fileChangeHandler($event)">
2<img [src]="output?.base64" alt="">

And add this to your .ts file:

1import {Component} from '@angular/core';
2import {NgxCroppedEvent, NgImgEditorService} from "ng-img-editor";
3
4@Component({...})
5export class AppComponent {
6  output?: NgxCroppedEvent;
7
8  constructor(private service: NgImgEditorService) {}
9
10  fileChangeHandler($event: any) {
11    this.service.open($event, {
12      aspectRatio: 4 / 3,
13      autoCropArea: 1
14    }).subscribe(data => {
15      this.output = data;
16    });
17  }
18}

You can pass any supported type of parameters to NgImgEditorService.open() to open the cropper. After click Apply button the observer will return an object with the cropped image as a Base64, Blob in its payload.

Parameters

Name	Type	Description
source	`FileEvent	File
options	check below para	This is an optional parameter

Options

Name	Type	Default	Description
format	string	source Image format	Output format (png, jpeg, webp, bmp, ico) (not all browsers support all types, png is always supported, others are optional)
aspectRatio	number	NaN	The width / height ratio (e.g. 1 / 1 for a square, 4 / 3, 16 / 9 ...)
resizeToWidth	number	0 (disabled)	Cropped image will be resized to this width (in px)
resizeToHeight	number	0 (disabled)	Cropped image will be resized to this height (in px)
roundCropper	boolean	false	Set this to true for a round cropper mask. Resulting image will still be square, use border-radius: 100% on resulting image to show it as round.
imageQuality	number	92	This only applies when using jpeg or webp as output format. Entering a number between 0 and 100 will determine the quality of the output image.
autoCrop	boolean	true	Enable to crop the image automatically when initialized.
autoCropArea	number	1 (80% of the image)	A number between 0 and 1. Define the automatic cropping area size (percentage).
viewMode	number	0	Define the ViewMode of the cropper.
mask	boolean	true	Show the black modal above the image and under the crop box.
guides	boolean	true	Show the dashed lines above the crop box.
centerIndicator	boolean	true	Show the center indicator above the crop box.
scalable	boolean	true	Enable to scale the image.
zoomable	boolean	true	Enable to zoom the image.
cropBoxMovable	boolean	true	Enable to move the crop box by dragging.
cropBoxResizable	boolean	true	Enable to resize the crop box by dragging.
imageSmoothingEnabled	boolean	true	Smooth image output.
imageSmoothingQuality	string	low	quality of image smoothing, one of "low" or "medium", or "high".
modalMaxWidth	string	'500px'	max-width property of the dialog container
hideModalHeader	boolean	false	Hide Modal Header.
applyBtnText	string	Apply	Apply button text
closeBtnText	string	Close	Close button text

Interfaces

NgxCroppedEvent

Property	Type	Description
base64	string	Base64 string of the cropped image
file	file(Blob)	Blob(File) of the cropped image

viewMode

• Type: Number
• Default: 0
• Options:
  • 0: no restrictions
  • 1: restrict the crop box to not exceed the size of the canvas.
  • 2: restrict the minimum canvas size to fit within the container. If the proportions of the canvas and the container differ, the minimum canvas will be surrounded by extra space in one of the dimensions.
  • 3: restrict the minimum canvas size to fill fit the container. If the proportions of the canvas and the container are different, the container will not be able to fit the whole canvas in one of the dimensions.

Define the view mode of the cropper. If you set viewMode to 0, the crop box can extend outside the canvas, while a value of 1, 2 or 3 will restrict the crop box to the size of the canvas. A viewMode of 2 or 3 will additionally restrict the canvas to the container. Note that if the proportions of the canvas and the container are the same, there is no difference between 2 and 3.