> For the complete documentation index, see [llms.txt](https://docs.apryse.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.apryse.com/web/get-started/samples/showcase-demo-image-to-pdf.md).

# Image to PDF Showcase Demo Code Sample

Easily convert image formats to PDF, completely client-side.

{% hint style="info" %}
**Requirements**

*These packages are required to use these features in production. Trial keys have unlimited access to all features*

<a href="/web/get-started/readme.md" class="button primary">Web SDK</a><a href="https://showcase.apryse.com/image-to-pdf" class="button primary">Live demo</a>
{% endhint %}

Easily convert images to PDF, entirely on the client side, with no server required. This follows the Image to PDF demo on showcase.

This demo allows you to:

* Upload your own image format file (such as PNG, JPG, GIF, PNG, BMP, etc.)
* Add customized annotations
* Edit the layout and content
* Download the updated PDF

### **Implementation steps**

To add image format conversion to PDF with WebViewer: Step 1: [Get started with WebViewer](/web/get-started/readme.md) in your preferred web stack Step 2: Add the ES6 JavaScript sample code provided in this guide

Once you generate your license key, it will automatically be included in your sample code below.

{% @apryse-license-key/apryse-license-key platform="WEB\_VIEWER" variant="compact" %}

<pre class="language-js" data-line-numbers><code class="lang-js">// ES6 Compliant Syntax
// GitHub Copilot - GPT-4 - July 21, 2025
// File: index.js

import WebViewer from '@pdftron/webviewer';
import saveAs from 'file-saver';

const licenseKey = '<code class="expression">visitor.claims.wvKey || "YOUR_WEBVIEWER_LICENSE_KEY"</code>';

// Customize the WebViewer UI
const customizeUI = (instance) => {
  const { UI } = instance;

  // Set the toolbar group to the annotate tools
  UI.setToolbarGroup('toolbarGroup-Annotate');

  // Convert button
  const convertButton = new UI.Components.CustomButton({
    dataElement: 'convertToPdfButton',
    className: 'custom-button-class',
    label: 'Image to PDF',
    onClick: () => convert(instance), // convert the image to PDF
    style: {
      padding: '10px 10px',
      backgroundColor: 'blue',
      color: 'white',
    }
  });

  const defaultHeader = UI.getModularHeader('default-top-header');
  defaultHeader.setItems([...defaultHeader.items, convertButton]);
};

// convert the image to PDF
const convert = async (instance) => {

  // Get the document
  const document = instance.Core.documentViewer.getDocument();

  // Get the filename
  let fileName = document.getFilename();

  // Ensure it ends with .pdf. If not, replace it with .pdf extension
  if (!fileName.endsWith('.pdf'))
    fileName = fileName.replace(/\.[^/.]+$/, '') + '.pdf';

  try {
    const data = await document.getFileData({
      downloadType: 'pdf',
    });

    const arr = new Uint8Array(data);
    const blob = new Blob([arr], { type: 'application/pdf' });

    // Save the image as a PDF
    saveAs(blob, fileName);

  } catch (e) {
    console.error('❌ Conversion failed:', e);
  }
};

WebViewer(
  {
    path: '/lib',
    initialDoc: 'https://apryse.s3.us-west-1.amazonaws.com/public/files/samples/Vancouver_komal-brar.jpg',
    enableFilePicker: true, // Enable file picker to open files. In WebViewer -> menu icon -> Open File
    licenseKey: licenseKey, 
  },
  document.getElementById('viewer')
).then((instance) => {

  // customize WebViewer UI
  customizeUI(instance);

  console.log('✅ WebViewer loaded successfully.');
}).catch((error) => {
  console.error('❌ Failed to initialize WebViewer:', error);
});
</code></pre>


---

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