Can I has PDF?
A tiny NPM module that determines if the browser can render PDFs, either with built-in support like Safari, Chrome and Firefox, or with Adobe Acrobat in Internet Explorer.
The module is expected to be used with the amazing browserify.
var pdfSupport = require('browser-pdf-support');
if (pdfSupport()) {
console.log('we has PDF!');
} else {
console.log('oh dear, you'll need to download acrobat or a real browser...');
}