var htmlTo = require('htmlto');

	var options = {
		pathTohtml:'./public/html/index.html',
		pathTopdf:'./public/pdf/index.pdf',
	}

	htmlTo.pdf(options)

Example pdf generator

	var htmlTo = require('htmlto');

	var options = {
		pathTohtml:'./public/html/index.html',
		pathTopdf:'./public/pdf/index.pdf',
		paperSize:{
			format: 'A4',
			orientation: 'portrait',
			margin: '1.5cm'
		}
	}

	htmlTo.pdf(options,function(err,result){
		if(err) throw err;
		console.log('result :',result)
	})

Example keyword density

	var htmlTo = require('htmlto');
	
	var options = {
		pathTohtml:'./public/html/keyword_index.html',
	}

	/*
		or pass url as

		var options = {
			url:'http://example.org'
		}

	*/

	htmlTo.keywordDensity(options,function(err,result){
		if(err) throw err;
		console.log('result :',result)
	})