angular-pdf

>An AngularJS directive ng-pdf to display PDF files with PDFJS.

Overview demo

Integrate PDF files right into web pages.

Requirements

Check package.json file for dependencies and their versions:

• 1. AngularJS - get the latest angular.min.js
• PDFJS - build the files pdf.js and pdf.worker.js
• Evergreen browsers

Features

• 1. next / previous page
• zoom in / out / fit 100%
• rotate clockwise
• jump to a page number
• when scrolling, the pdf controls will get fixed position at the top
• define the view template
• define the path to pdf with scope variable
• handles error
• show loading of pdf
• show progress percentage of loading pdf
• insert password for protected PDFs
• dynamically change the pdf url
• support retina canvas
• set authorization or http headers

Getting Started

1. Install or copy over the file dist/angular-pdf.min.js or dist/angular-pdf.js

```shell
npm install angular-pdf --save
```
or
```shell
bower install angular-pdf --save
```

• Include the path to the directive file in index.html

```html
<script src="js/vendor/angular-pdf/dist/angular-pdf.js"></script>
```

• Include the directive as a dependency when defining the angular app:

```js
var app = angular.module('App', ['pdf']);
```

• Include the directive with the attribute path to the partial under a controller

```html
<div class="wrapper" ng-controller="DocCtrl">
    <ng-pdf template-url="/partials/viewer.html"></ng-pdf>
</div>
```
- `scale` as an option

  ```html
  <ng-pdf template-url="/partials/viewer.html" scale=1></ng-pdf>
  ```

  `scale` attribute can also be `page-fit`

  ```html
  <ng-pdf template-url="/partials/viewer.html" scale="page-fit"></ng-pdf>
  ```
- `page` as an option for initial page number

  ```html
  <ng-pdf template-url="/partials/viewer.html" page=12></ng-pdf>
  ```
- `usecredentials` as an option to add credentials / authorization

  ```html
  <ng-pdf template-url="/partials/viewer.html" usecredentials="true"></ng-pdf>
  ```
- `debug` to enable debugging console output (optional, disabled by default)

  ```html
  <ng-pdf template-url="/partials/viewer.html" debug="true"></ng-pdf>
  ```

• Include the canvas element to display the pdf in the template-url file

```html ```

• Include the path to the pdf file in the controller

```js app.controller('DocCtrl', function($scope) {

$scope.pdfUrl = '/pdf/relativity.pdf';

}); `` - Set custom headers, e.g. authorization headers with $scope.httpHeaders` option
```js app.controller('DocCtrl', function($scope) {

$scope.pdfUrl = '/pdf/relativity.pdf';
$scope.httpHeaders = { Authorization: 'Bearer some-aleatory-token' };

}); ```

Options

1. Next / Previous page: Include the controls in the view file as defined in the attribute template-url

``` < > `` - **Zoom in / out / fit 100%**: Include the controls in the view file as defined in the attribute template-url`
``` + 100% - `` - **Rotate clockwise**: Include the controls in the view file as defined in the attribute template-url and the initial class rotate0`
```html 90 ... ```
include the css styles:
```css .rotate0 {-webkit-transform: rotate(0deg); transform: rotate(0deg); } .rotate90 {-webkit-transform: rotate(90deg); transform: rotate(90deg); } .rotate180 {-webkit-transform: rotate(180deg); transform: rotate(180deg); } .rotate270 {-webkit-transform: rotate(270deg); transform: rotate(270deg); } `` - **Jump to page number**: Include the controls in the view file as defined in the attribute template-url`
```html Page: / {{pageCount}} `` - **Fixed pdf controls upon scrolling**: Wrap the controls in the view file as defined in the attribute template-url with a tag nav with an ng-class`. Amend the scroll amount as required.
```html ```
And include the relevant css styles as required:
```css .pdf-controls { width: 100%; display: block; background: #eee; padding: 1em;} .fixed { position: fixed; top: 0; left: calc(50% - 480px); z-index: 100; width: 100%; padding: 1em; background: rgba(238, 238, 238,.9); width: 960px; } `` - open the file index.html` with a web server

When url is base64 or Uint8Array

Create a Blob:

currentBlob = new Blob([result], {type: 'application/pdf'});
$scope.pdfUrl = URL.createObjectURL(currentBlob);

Handle error

In the controller, you can call the function $scope.onError:

$scope.onError = function(error) {
	// handle the error
	// console.log(error);
}

Show loading

In the controller, you can call the function $scope.onLoad when the pdf succesfully loaded:

$scope.loading = 'loading';

$scope.onLoad = function() {
  // do something when pdf is fully loaded
  // $scope.loading = '';
}

Show progress percentage

In the controller, you can call the function $scope.onProgress

$scope.onProgress = function(progress) {
	// handle a progress bar
	// progress% = progress.loaded / progress.total
	// console.log(progress);
}

Managing password requests

In the controller, you can use the function scope.onPassword. This function is called when the PDF require an opening password.

$scope.onPassword = function (updatePasswordFn, passwordResponse) {
  // if passwordResponse === PDFJS.PasswordResponses.NEED_PASSWORD
  // you can provide the password calling updatePasswordFn('THE_PASSWORD')
  // else if passwordResponse === PDFJS.PasswordResponses.INCORRECT_PASSWORD
  // provided password is not correct
};

Variations

1. If using with Angular UI modal, pageNum attribute is no longer required. Checkout the implementation

Similar projects

• 1. angular-pdf-viewer - a more self-contained directive
• ng-pdfviewer

Credit

PDF example used is Relativity: The Special and General Theory by Albert Einstein as kindly organized and made available free by Project Gutenberg.

Contribute

This project is an OPEN Open Source Project. This means that:

Individuals making significant and valuable contributions are given commit-access to the project to contribute as they see fit. This project is more like an open wiki than a standard guarded open source project.

Please see CONTRIBUTING.md for details.

Versioning

This repository follows the Semantic Versioning guidelines:

1. For patches, run the command:

```
npm run release patch
```

• For minor release, run the command:

```
npm run release minor
```

• For major release, run the command:

```
npm run release major
```

License

MIT license