Portable PDF reader

manifest.json

{
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {},
  "description": "__MSG_desc__",
  "file_browser_handlers": [
    {
      "default_title": "Open with PDF Reader",
      "file_filters": [
        "filesystem:*.pdf"
      ],
      "id": "open-as-pdf"
    }
  ],
  "icons": {
    "16": "data/icons/16.png",
    "18": "data/icons/18.png",
    "19": "data/icons/19.png",
    "32": "data/icons/32.png",
    "36": "data/icons/36.png",
    "38": "data/icons/38.png",
    "48": "data/icons/48.png",
    "64": "data/icons/64.png",
    "128": "data/icons/128.png",
    "256": "data/icons/256.png",
    "512": "data/icons/512.png"
  },
  "manifest_version": 2,
  "name": "__MSG_name__",
  "default_locale": "en_US",
  "short_name": "__MSG_shortname__",
  "permissions": [
    "<all_urls>",
    "storage",
    "contextMenus",
    "chrome://favicon/",
    "fileBrowserHandler"
  ],
  "update_url": "https://clients2.google.com/service/update2/crx",
  "version": "2020.10.17.1",
  "web_accessible_resources": [
    "data/pdf.js/web/viewer.html"
  ]
}