A Node.js module for converting a pdf into an image file, using Promises.
This module is based on pdf2img by Fitra Aditya.
- It was completely refactored to use async/await instead of callbacks
- Error handling was improved
- The async lib dependency was removed
- An option to inform the desired image quality was implemented
- The lib is now an EventEmitter, so you can listen to the file conversion progress
These dependencies must be installed on your server, as the gm package uses them:
- GraphicsMagick
- GhostScript
$ npm install pdf2img-promises
const fs = require('fs');
const path = require('path');
const Pdf2Img = require('pdf2img-promises');
let input = __dirname + '/test.pdf';
let fileName = 'test';
let converter = new Pdf2Img();
// The event emitter is emitting to the file name
converter.on(fileName, (msg) => {
console.log('Received: ', msg);
});
converter.setOptions({
type: 'png', // png or jpg, default jpg
size: 1024, // default 1024
density: 600, // default 600
quality: 100, // default 100
outputdir: __dirname + path.sep + 'output', // output folder, default null (if null given, then it will create folder name same as file name)
outputname: fileName, // output file name, dafault null (if null given, then it will create image name same as input name)
page: null // convert selected page, default null (if null given, then it will convert all pages)
});
converter.convert(input)
.then(info => {
console.log(info);
})
.catch(err => {
console.error(err);
})It will return array of splitted and converted image files.
{ result: 'success',
message:
[ { page: 1,
name: 'test_1.jpg',
size: 17.275,
path: '/output/test_1.jpg' },
{ page: 2,
name: 'test_2.jpg',
size: 24.518,
path: '/output/test_2.jpg' },
{ page: 3,
name: 'test_3.jpg',
size: 24.055,
path: '/output/test_3.jpg' } ] }MIT