---
title: "PDF.js in Joomla: multiple JSON profiles - WebTolk websites development, Joomla Extensions"
description: "A catalogue can use config=catalog.json, a mobile layout config=mobile.json, and another section its own file. One profile works with both viewers. Multiple…"
url: "https://web-tolk.ru/en/dev/joomla-plugins/wt-pdf-js/documentation/multiple-profiles"
date: "2026-10-09T19:20:20+00:00"
language: "en-GB"
---

## Breadcrumbs

[Home](https://web-tolk.ru/en) > [Joomla extensions](https://web-tolk.ru/en/dev) > [Joomla plugins](/en/dev/joomla-plugins) > [WT PDF.js](/en/dev/joomla-plugins/wt-pdf-js) > [Documentation](/en/dev/joomla-plugins/wt-pdf-js/documentation) > PDF.js in Joomla: multiple JSON profiles

# PDF.js in Joomla: multiple JSON profiles

WT PDF.js - Documentation

**Category:** [Joomla plugins](https://web-tolk.ru/en/dev/joomla-plugins)

[Project](https://web-tolk.ru/en/dev/joomla-plugins/wt-pdf-js)[Versions](https://web-tolk.ru/en/dev/joomla-plugins/wt-pdf-js/versions)[Documentation](https://web-tolk.ru/en/dev/joomla-plugins/wt-pdf-js/documentation)[GitHub](https://github.com/mozilla/pdf.js)

A catalogue can use config=catalog.json, a mobile layout config=mobile.json, and another section its own file.

## Select a profile for a section or iframe

A catalogue can use config=catalog.json, a mobile layout config=mobile.json, and another section its own file. One profile works with both viewers. Multiple iframes may use different file/config values; each window is configured separately.

Switch by building a new URL and assigning iframe.src: the viewer and PDF reload. Editing JSON does not automatically update open tabs. Profiles are fetched on opening with cache: no-store; check independent CDN and Service Worker rules on your site.

### JavaScript example

```
const root = '/joomla'; // '' when Joomla is installed in the domain root
const viewer = new URL(
    root + '/media/plg_system_wtpdfjs/viewer/legacy/web/viewer.html',
    location.origin
);
viewer.searchParams.set('file', root + '/images/documents/catalog.pdf');
viewer.searchParams.set('config', 'mobile.json');
viewer.hash = 'page=2&zoom=page-width';
document.querySelector('#pdf-frame').src = viewer.href;
```

## JSON-LD Schema

```json
{
    "@context": "https://schema.org",
    "@type": "BreadcrumbList",
    "@id": "https://web-tolk.ru/#/schema/BreadcrumbList/17",
    "itemListElement": [
        {
            "@type": "ListItem",
            "position": 1,
            "item": {
                "@id": "https://web-tolk.ru/en",
                "name": "Home"
            }
        },
        {
            "@type": "ListItem",
            "position": 2,
            "item": {
                "@id": "https://web-tolk.ru/en/dev",
                "name": "Joomla extensions"
            }
        },
        {
            "@type": "ListItem",
            "position": 3,
            "item": {
                "@id": "/en/dev/joomla-plugins",
                "name": "Joomla plugins"
            }
        },
        {
            "@type": "ListItem",
            "position": 4,
            "item": {
                "@id": "/en/dev/joomla-plugins/wt-pdf-js",
                "name": "WT PDF.js"
            }
        },
        {
            "@type": "ListItem",
            "position": 5,
            "item": {
                "@id": "/en/dev/joomla-plugins/wt-pdf-js/documentation",
                "name": "Documentation"
            }
        },
        {
            "@type": "ListItem",
            "position": 6,
            "item": {
                "name": "PDF.js in Joomla: multiple JSON profiles"
            }
        }
    ]
}
```

```json
{
    "@context": "https://schema.org",
    "@graph": [
        {
            "@type": "Organization",
            "@id": "https://web-tolk.ru/#/schema/Organization/base",
            "name": "WebTolk",
            "url": "https://web-tolk.ru/",
            "logo": {
                "@type": "ImageObject",
                "@id": "https://web-tolk.ru/#/schema/ImageObject/logo",
                "url": "https://web-tolk.ru/images/webtolk-1080p.jpg",
                "contentUrl": "https://web-tolk.ru/images/webtolk-1080p.jpg",
                "width": 1920,
                "height": 1080
            },
            "image": {
                "@id": "https://web-tolk.ru/#/schema/ImageObject/logo"
            },
            "sameAs": [
                "https://github.com/WebTolk",
                "https://github.com/sergeytolkachyov",
                "https://vk.com/web_tolk",
                "https://vk.com/webtolkru",
                "https://tenchat.ru/sergeytolkachyov",
                "https://t.me/sergeytolkachyov",
                "https://t.me/webtolkru"
            ]
        },
        {
            "@type": "WebSite",
            "@id": "https://web-tolk.ru/#/schema/WebSite/base",
            "url": "https://web-tolk.ru/",
            "name": "WebTolk websites development, Joomla Extensions",
            "publisher": {
                "@id": "https://web-tolk.ru/#/schema/Organization/base"
            }
        },
        {
            "@type": "WebPage",
            "@id": "https://web-tolk.ru/#/schema/WebPage/base",
            "url": "https://web-tolk.ru/en/dev/joomla-plugins/wt-pdf-js/documentation/multiple-profiles",
            "name": "PDF.js in Joomla: multiple JSON profiles - WebTolk websites development, Joomla Extensions",
            "description": "A catalogue can use config=catalog.json, a mobile layout config=mobile.json, and another section its own file. One profile works with both viewers. Multiple…",
            "isPartOf": {
                "@id": "https://web-tolk.ru/#/schema/WebSite/base"
            },
            "about": {
                "@id": "https://web-tolk.ru/#/schema/TechArticle/base"
            },
            "inLanguage": "en-GB",
            "breadcrumb": {
                "@id": "https://web-tolk.ru/#/schema/BreadcrumbList/17"
            }
        },
        {
            "@type": "TechArticle",
            "headline": "PDF.js in Joomla: multiple JSON profiles",
            "url": "https://web-tolk.ru/en/dev/joomla-plugins/wt-pdf-js/documentation/multiple-profiles",
            "description": "A catalogue can use config=catalog.json, a mobile layout config=mobile.json, and another section its own file.",
            "mainEntityOfPage": {
                "@type": "WebPage",
                "url": "https://web-tolk.ru/en/dev/joomla-plugins/wt-pdf-js/documentation/multiple-profiles"
            }
        }
    ]
}
```