> 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/users-and-permissions.md).

# Users and permissions

JavaScript sample to define user permissions in PDF Viewer. Define how users interact with documents, limit to read only or enable adding / deleting annotations

{% 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/annotation-permissions" class="button primary">Live demo</a>
{% endhint %}

This JavaScript sample demonstrates how you can apply permissions to users viewing your PDF, DOCX, XLSX, or PPTX document (no other external dependencies required). In this specific example you define how a user interacts with annotations in the PDF viewer.

One common use case is removing a user’s ability to add annotation by providing them read-only access. Another example would be defining the types of annotations a user sees on a document – they can see highlighted text from another user but not the sticky notes they added. For other users you can give them the ability to respond to comments or give administrative rights to delete annotations.

This sample works on all browsers (including IE11) and mobile devices without using plug-ins.

Learn more about our [Web SDK](/web/get-started/guides.md).

{% tabs %}
{% tab title="JavaScript" %}
{% code lineNumbers="true" %}

```js
// eslint-disable-next-line no-undef
const WebViewerConstructor = isWebComponent() ? WebViewer.WebComponent : WebViewer;

WebViewerConstructor(
  {
    path: '../../../lib',
    initialDoc: 'https://pdftron.s3.amazonaws.com/downloads/pl/demo-annotated.pdf',
  },
  document.getElementById('viewer')
).then(instance => {
  samplesSetup(instance);
  const { annotationManager } = instance.Core;
  const { openElements } = instance.UI;
  let shouldShowAnnotFromOtherUsers = true;

  const toggleVisibility = () => {
    const currentUser = annotationManager.getCurrentUser();
    const allAnnotations = annotationManager.getAnnotationsList().filter(annot => annot.Listable);
    let annotationsToShow = allAnnotations;
    annotationManager.hideAnnotations(allAnnotations);

    if (!shouldShowAnnotFromOtherUsers) {
      annotationsToShow = allAnnotations.filter(annot => annot.Author === currentUser);
    }
    annotationManager.showAnnotations(annotationsToShow);
  };

  annotationManager.setCurrentUser('Justin');
  annotationManager.promoteUserToAdmin();
  openElements(['notesPanel']);

  document.getElementById('justin').onchange = () => {
    annotationManager.setCurrentUser('Justin');
    annotationManager.promoteUserToAdmin();
    annotationManager.disableReadOnlyMode();
    toggleVisibility();
  };

  document.getElementById('sally').onchange = () => {
    annotationManager.setCurrentUser('Sally');
    annotationManager.demoteUserFromAdmin();
    annotationManager.disableReadOnlyMode();
    toggleVisibility();
  };

  document.getElementById('brian').onchange = () => {
    annotationManager.setCurrentUser('Brian');
    annotationManager.demoteUserFromAdmin();
    annotationManager.enableReadOnlyMode();
    toggleVisibility();
  };

  document.getElementById('display').onchange = e => {
    shouldShowAnnotFromOtherUsers = e.target.checked;
    toggleVisibility();
  };
});
```

{% endcode %}
{% endtab %}
{% endtabs %}


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