pdf-toolz

NodeJS PDF utilities. Requires NodeJS 7+ due to async/await support

Installation

> npm install mz pdf-toolz

$3

pdftk => needed for SplitCombine
> sudo apt install pdftk

pdfToImage needs graphicsmagick
> sudo apt install graphicsmagick

combinePDF needs ghostscript
> sudo apt install ghostscript

An Error will be thrown if they are not present.

Usage

$3

``js
const fs = require('mz/fs');
const {readPDFPageSizes} = require('pdf-toolz/PageSizes');

async function readPageSizes() {
const pdf = await fs.readFile('test/portrait-singlepage.pdf');
const pageSizes = await pdfPageSizes(pdf);
console.log(pageSizes); // [PageSize(842, 595)]);
}

readPageSizes()
`

$3

`js
const fs = require('mz/fs');
const {pdfToImage} = require('pdf-toolz/PDF2Image');

async function exportPageImages() {
const pdf = await fs.readFile('test/portrait-singlepage.pdf');
const pageImages = await pdfToImage(pdf, 'png', 400 / dpi /);
// Export the page images
await fs.writeFile("page-1.png", pageImages[0]);
await fs.writeFile("page-2.png", pageImages[1]);
await fs.writeFile("page-3.png", pageImages[2]);
}

exportPageImages()
`

$3

`js
const fs = require('mz/fs');
const {splitPDF} = require('pdf-toolz/SplitCombine');

async function splitPDFIntoPages() {
const pdf = await fs.readFile('test/portrait-multipage.pdf');
const pages = await splitPDF(pdf);
// Export the page images
await fs.writeFile("page-1.pdf", pages[0]);
await fs.writeFile("page-2.pdf", pages[1]);
await fs.writeFile("page-3.pdf", pages[2]);
}

splitPDFIntoPages()
`

$3

`js
const fs = require('mz/fs');
const {combinePDF} = require('pdf-toolz/SplitCombine');

async function combinePDFs() {
// Read two PDFs to be combined
const pdf1 = await fs.readFile('test/portrait-singlepage.pdf');
const pdf2 = await fs.readFile('test/landscape-singlepage.pdf');
const combined = await combinePDF([pdf1, pdf2]);
// Write output file
await fs.writeFile('combined.pdf', combined);
}

combinePDFs()
``

Testing

> npm test