Face converter » canvas to pdf


↔
Drop files here. 10 MB maximum file size.
To convert, first select your file or drag and drop it in the box
Click the Upload option to start uploading and converting
Receive and download the file in the new format

CANVAS to PDF Converter

Have you ever been faced with converting Canvas to PDF? With JavaScript, you may create images and animations on a web page using the Canvas HTML element. The style and quality of your document are maintained while using the widely used PDF file format across many platforms and devices. Sometimes, you can convert your canvas content to a PDF file for printing, sharing, or archiving purposes. In this article on face converter, we will show you how to do that using some simple tools and techniques.

 

How do I convert Canvas to PDF? 2

The connection between Canvas and PDF is that you can convert your canvas content to a PDF file for various purposes. For example, print your canvas content, share it with others, or archive it for future use. There are different methods to convert canvas to PDF, such as using the print option in your web browser, using a JavaScript library like jsPDF or canvas2pdf, or using an online converter tool. You can find more information below.

canvas to pdf

How do I convert Canvas to PDF? 

The connection between Canvas and PDF is that you can convert your canvas content to a PDF file for various purposes. For example, print your canvas content, share it with others, or archive it for future use. There are different methods to convert canvas to PDF, such as using the print option in your web browser, using a JavaScript library like jsPDF or canvas2pdf, or using an online converter tool. You can find more information below.

 

Method 1: Using jsPDF Library

One way to convert canvas to PDF is to use a JavaScript library called jsPDF. This library allows you to create and download PDF documents from your web browser. To use this method, you will need to do the following steps:

  • Include the jsPDF library in your HTML file using a script tag or a CDN link. You can find the latest version of the library.
  • In your HTML file, create a canvas element and use JavaScript to draw your content. The canvas API allows you to generate text, graphics, shapes, and more.

 

  • To obtain an image of your canvas material that has been base64-encoded, use the canvas element’s toDataURL method. To select the image format and quality, this function requires an extra parameter. For instance, canvas.toDataURL(‘image/jpeg,’ 0.8) will yield an 80% quality JPEG image.

 

  • Create a new jsPDF object and use the addImage method to insert the image into the PDF document. You can specify the position, size, and alignment of the image. For instance, the picture with dimensions of 200 by 150 will be added to the top-left corner of the PDF page if you use the function pdf.addImage(imgData, ‘JPEG,’ 10, 10, 200, 150).

To save the PDF file to your device, use the jsPDF object’s save function. The file name can be supplied as an argument.

 

  • To save the PDF file, use the jsPDF object’s save function. The file name can be supplied as an argument. The PDF document will be saved as canvas.pdf, for instance, if you use pdf. Save (‘canvas.pdf’).

Here is an example of how to use this method:

JavaScript

// Include the jsPDF library

<script src=”https://cdnjs.cloudflare.com/ajax/libs/jspdf/2.3.1/jspdf.umd.min.js”></script>

 

// Create a canvas element and draw some content

<canvas id=”myCanvas” width=”300″ height=”200″></canvas>

<script>

  var canvas = document.getElementById(‘myCanvas’);

  var context = canvas.getContext(‘2d’);

 

  // Draw a red rectangle

  context.fillStyle = ‘red’;

  context.fillRect(50, 50, 200, 100);

 

  // Draw some text

  context.fillStyle = ‘black’;

  context.font = ’20px Arial’;

  context.fillText(‘Hello, world!’, 100, 150);

</script>

 

// Convert canvas to PDF and download it

<script>

  // Get the image data of the canvas

  var imgData = canvas.toDataURL(‘image/jpeg’, 0.8);

 

  // Create a new jsPDF object

  var pdf = new jsPDF();

 

  // Add the image to the PDF document

  pdf.addImage(imgData, ‘JPEG’, 10, 10, 200, 150);

 

  // Save the PDF document

  pdf.save(‘canvas.pdf’);

</script>

AI-generated code. Review and use carefully. 

canvas to pdf converter

Method 2: Using canvas2pdf Library

Another way to convert canvas to PDF is to use a JavaScript library called canvas2pdf. This library creates a PDF representation of your canvas element, unlike the other methods which embed an image in a PDF document. This means that the PDF document will have the same vector graphics and text as the canvas element, which can result in better quality and smaller file size. To use this method, you will need to do the following steps:

  • Include the canvas2pdf library and the blob-stream library in your HTML file using script tags or CDN links. 
  • Create a new canvas2pdf object and pass a blob-stream object as a parameter. This will create a PDF canvas context that you can use to draw your content using the same methods as the everyday canvas context. For example, var ctx = new canvas2pdf(blobStream()) will create a new PDF canvas context.
  • Use JavaScript to draw your information on the PDF canvas environment. The canvas API allows you to generate text, graphics, shapes, and more.

 

  • Use the end method of the canvas2pdf object to finish the PDF document. This will trigger the finish event of the blob-stream object, which will give you access to the PDF blob.

Use the saveAs function of the FileSaver library to download the PDF blob to your device. You can specify the file name as a parameter. 

Here is an example of how to use this method:

JavaScript

// Include the canvas2pdf, blob-stream, and FileSaver libraries

<script src=”https://cdnjs.cloudflare.com/ajax/libs/canvas2pdf/0.1.0/canvas2pdf.js”></script>

<script src=”https://cdnjs.cloudflare.com/ajax/libs/blob-stream/0.1.3/blob-stream.js”></script>

<script src=”https://cdnjs.cloudflare.com/ajax/libs/FileSaver.js/2.0.5/FileSaver.min.js”></script>

 

// Create a new canvas2pdf object and a PDF canvas context

<script>

  // Create a new canvas2pdf object

  var pdf = new canvas2pdf(blobStream());

 

  // Get the PDF canvas context

  var ctx = pdf.getContext(‘2d’);

</script>

 

// Draw some content on the PDF canvas context

<script>

  // Draw a blue circle

  ctx.fillStyle = ‘blue’;

  ctx.beginPath();

  ctx.arc(150, 100, 50, 0, 2 * Math.PI);

  ctx.fill();

 

  // Draw some text

  ctx.fillStyle = ‘black’;

  ctx.font = ’20px Arial’;

  ctx.fillText(‘Hello, world!’, 100, 180);

</script>

 

// Convert canvas to PDF and download it

<script>

  // Finish the PDF document

  pdf.end();

 

  // Get the PDF blob

  pdf.stream.on(‘finish’, function () {

    var blob = pdf.stream.toBlob(‘application/pdf’);

 

    // Save the PDF blob

    saveAs(blob, ‘canvas.pdf’);

  });

</script>

AI-generated code. Review and use carefully. 

Conclusion

In this article, we have shown you how to convert canvas to PDF using two different methods: jsPDF and canvas2pdf. Both approaches have their advantages and disadvantages, so you can select the one that suits your needs best. We hope this article was helpful and informative for you.

Scroll to Top