olvresc / pdf2image

A utility for converting pdf to image and base64 format.

PDF2Pic

A utility for converting pdf to image and base64 format.

Prerequisite

• node >= 8.x
• graphicsmagick
• ghostscript

Features

• converts pdf to image.
• converts pdf to base64.
• customizable output.
• customizable image quality.

Dependencies

• fs-extra
• gm
• gm-base64

Installation

npm install -S pdf2pic

Usage

Basic

const PDF2Pic = require("pdf2pic");

const pdf2pic = new PDF2Pic({
  density: 100,           // output pixels per inch
  savename: "untitled",   // output file name
  savedir: "./images",    // output file location
  format: "png",          // output file format
  size: "600x600"         // output size in pixels
});

pdf2pic.convert("/path/to/pdf/sample.pdf").then((resolve) => {
  console.log("image converter successfully!");

  return resolve;
});

Convert all pages

const PDF2Pic = require("pdf2pic");

const pdf2pic = new PDF2Pic({
  density: 100,           // output pixels per inch
  savename: "untitled",   // output file name
  savedir: "./images",    // output file location
  format: "png",          // output file format
  size: "600x600"         // output size in pixels
});

pdf2pic.convertBulk("path/to/pdf/sample.pdf", -1).then((resolve) => {
  console.log("image converter successfully!");

  return resolve;
});

Multiple page conversion (specific pages)

const PDF2Pic = require("pdf2pic");

const pdf2pic = new PDF2Pic({
  density: 100,           // output pixels per inch
  savename: "untitled",   // output file name
  savedir: "./images",    // output file location
  format: "png",          // output file format
  size: "600x600"         // output size in pixels
});

pdf2pic.convertBulk("path/to/pdf/sample.pdf", [1,4,6]).then((resolve) => {
  console.log("image converter successfully!");

  return resolve;
});

Convert pdf to base64 string of an image

const PDF2Pic = require("pdf2pic");

const pdf2pic = new PDF2Pic({
  density: 100,           // output pixels per inch
  savename: "untitled",   // output file name
  savedir: "./images",    // output file location
  format: "png",          // output file format
  size: "600x600"         // output size in pixels
});

pdf2pic.convertToBase64("path/to/pdf/sample.pdf").then((resolve) => {
  if (resolve.base64) {
    console.log("image converter successfully!");

    // assuming you're using some ORM to save base64 to db
    return db.model.table('users').update({id: "1", image: resolve.base64});
  }
});