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August 29, 2015 14:14
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var exec = require('child_process').exec; | |
var fs = require('fs'); | |
var util = require('util'); | |
var http = require('http'); | |
var url = require('url'); | |
var PDFDocument = require('pdfkit'); // http://pdfkit.org/ | |
http.createServer(function (req, res) { | |
// Parse URL to get a filename | |
var urlObj = url.parse(req.url, true); | |
var filename = urlObj.query["filename"]; | |
//Create a PDF with PDFKit | |
var doc = new PDFDocument(); | |
doc.pipe(fs.createWriteStream('output/' + filename + '.pdf')); | |
doc.fontSize(22); | |
doc.text('Your file: '+filename+'.pdf', 20, 20); | |
doc.fontSize(16); | |
doc.text('Was created successfully if you see this.', 20, 30); | |
doc.save(); | |
doc.moveTo(100, 150); | |
doc.lineTo(100, 250); | |
doc.lineTo(200, 250); | |
doc.fill("#FF3300"); | |
doc.restore(); | |
doc.end(); | |
// Render PNG with GhostScript | |
exec("/usr/bin/gs -dQUIET -dPARANOIDSAFER -dBATCH -dNOPAUSE -dNOPROMPT -sDEVICE=png16m -dTextAlphaBits=4 -dGraphicsAlphaBits=4 -r72 -dFirstPage=1 -dLastPage=1 -sOutputFile=./output/"+filename+".png ./output/"+filename+".pdf", function (error, stdout, stderr) { | |
if ( error !== null ) { | |
console.log(error); | |
} | |
else { | |
var img = fs.readFileSync('./output/'+filename+'.png'); | |
res.writeHead(200, {'Content-Type': 'image/png' }); | |
res.end(img, 'binary'); | |
console.log('Created PNG: '+filename+'.png'); | |
} | |
}); | |
}).listen(3000); | |
console.log('Server running.'); |
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