Print.js

Example

Add a button to print a PDF file located on your hosting server:

 <button type="button" onclick="printJS('docs/printjs.pdf')">
    Print PDF
 </button>

Result:

For large files, you can show a message to the user when loading files.

 <button type="button" onclick="printJS({printable:'docs/xx_large_printjs.pdf', type:'pdf', showModal:true})">
    Print PDF with Message
 </button>

Result:

The library supports base64 PDF printing:

 <button type="button" onclick="printJS({printable: base64, type: 'pdf', base64: true})">
    Print PDF with Message
 </button>

Result:

 <form method="post" action="#" id="printJS-form">
    ...
 </form>

 <button type="button" onclick="printJS('printJS-form', 'html')">
    Print Form
 </button>

Result:

Print.js accepts an object with arguments. Let's print the form again, but now we will add a header to the page:

 <button type="button" onclick="printJS({ printable: 'printJS-form', type: 'html', header: 'PrintJS - Form Element Selection' })">
    Print Form with Header
 </button>

Result:

Load images on your page with just the necessary resolution you need on screen:

 <img src="images/print-01.jpg" />

In your javascript, pass the highest resolution image url to Print.js for a better print quality:

 printJS('images/print-01-highres.jpg', 'image')

Result:

Print.js uses promises to make sure the images are loaded before trying to print. This is useful when printing high resolution images that are not yet loaded, like the example above.

You can also add a header to the image being printed:

 printJS({printable: 'images/print-01-highres.jpg', type: 'image', header: 'My cool image header'})

To print multiple images together, we can pass an array of images. We can also pass the style to be applied on each image:

 printJS({
  printable: ['images/print-01-highres.jpg', 'images/print-02-highres.jpg', 'images/print-03-highres.jpg'],
  type: 'image',
  header: 'Multiple Images',
  imageStyle: 'width:50%;margin-bottom:20px;'
 })

We have the following data set in our javascript code. This would probably come from an AJAX call to a server API:

 someJSONdata = [
    {
       name: 'John Doe',
       email: 'john@doe.com',
       phone: '111-111-1111'
    },
    {
       name: 'Barry Allen',
       email: 'barry@flash.com',
       phone: '222-222-2222'
    },
    {
       name: 'Cool Dude',
       email: 'cool@dude.com',
       phone: '333-333-3333'
    }
 ]

We can pass it to Print.js:

 <button type="button" onclick="printJS({printable: someJSONdata, properties: ['name', 'email', 'phone'], type: 'json'})">
    Print JSON Data
 </button>

Result:

We can style the data grid by passing some custom css:

 <button type="button" onclick="printJS({
	    printable: someJSONdata,
	    properties: ['name', 'email', 'phone'],
	    type: 'json',
	    gridHeaderStyle: 'color: red;  border: 2px solid #3971A5;',
	    gridStyle: 'border: 2px solid #3971A5;'
	})">
    Print JSON Data
 </button>

Result:

We can customize the table header text sending an object array

 <button type="button" onclick="printJS({
	    printable: someJSONdata,
	    properties: [
		{ field: 'name', displayName: 'Full Name'},
		{ field: 'email', displayName: 'E-mail'},
		{ field: 'phone', displayName: 'Phone'}
	    ],
	    type: 'json'
        })">
    Print with custom table header text
 </button>

Result:

JSON, HTML and Image print can receive a raw HTML header:

<button type="button" onclick="printJS({
		printable: someJSONdata,
		type: 'json',
		properties: ['name', 'email', 'phone'],
		header: '<h3 class="custom-h3">My custom header</h3>',
		style: '.custom-h3 { color: red; }'
	  })">
	Print header raw html
</button>
 
 

Result: