This package pdf-merge-split performe merge and split opreation on pdf, provide prebuild function, It use pdf-lib

Installation

npm i pdf-merge-split

merge pdf

commonjs

const {merge_pdf} = require('pdf-merge-split')
const fs = require('fs')

const paths = ['./test.pdf','./test2.pdf']

async function mergePdf_fn() {
    const pdf_data = await merge_pdf(paths);
    if (pdf_data.success) {
        fs.writeFileSync('merge.pdf', pdf_data.data)
    }
}

mergePdf_fn()

ES6

import {merge_pdf} from 'pdf-merge-split'
import fs from 'fs'

const paths = ['./test.pdf','./test2.pdf']

const mergePdf_fn = async () => {
    const pdf_data = await merge_pdf(paths);
    if (pdf_data.success) {
        fs.writeFileSync('merge.pdf', pdf_data.data)
    }
}

mergePdf_fn()

Input

merge_pdf accepts one argument:

• An array of PDF file paths

Rules

• Must be an array of strings
• Minimum 2 file paths required
• You can add as many PDF files as needed

Output

merge_pdf returns an object:

{
  success: Boolean,
  data: Buffer
}

• success => true only if merge is successful
• data => final merged PDF (raw buffer, must be saved as .pdf)
• If success = false, data will NOT be returned

split pdf

allpagesplit (split each page of pdf as separate pdf file)

commonjs

const {split_pdf} = require('pdf-merge-split');
const fs = require('fs');

const option = {
   mode: 'allpagesplit'
}
async function splitPdf_fn() {
  const pdf_data = await split_pdf('./test.pdf', option);
  if (pdf_data.success) {
     for (let i = 0; i < pdf_data.totalPages; i++) {
     fs.writeFileSync(`${i+1}.pdf`,pdf_data.data[i])
    }
  }
}
splitPdf_fn()

ES6

import {split_pdf} from 'pdf-merge-split'
import fs from 'fs'

const option = {
    mode: 'allpagesplit'
}
const splitPdf_fn = () => {
    const pdf_data = await split_pdf('./test.pdf', option);
  if (pdf_data.success) {
     for (let i = 0; i < pdf_data.totalPages; i++) {
     fs.writeFileSync(`${i+1}.pdf`,pdf_data.data[i])
    }
  }
}
splitPdf_fn()

range (split each page of pdf as separate pdf file for given range , ex: 10, 15 => output => 10.pdf , 11.pdf .... to 15.pdf, give range inside option pageNumbers field)

commonjs

const {split_pdf} = require('pdf-merge-split');
const fs = require('fs');

const option = {
   mode: 'range',
   pageNumbers: [10,15]
}

const splitPdf_fn = () => {
    const pdf_data = await split_pdf('./test.pdf', option);
    if (pdf_data.success) {
     for (let i = 0; i < pdf_data.totalPages; i++) {
      fs.writeFileSync(`${i+1}.pdf`,pdf_data.data[i])
  }
 }
}

splitPdf_fn()

ES6

import {split_pdf} from 'pdf-merge-split'
import fs from 'fs'

const option = {
   mode: 'range',
   pageNumbers: [10,15]
}
const splitPdf_fn = () => {
    const pdf_data = await split_pdf('./test.pdf', option);
  if (pdf_data.success) {
     for (let i = 0; i < pdf_data.totalPages; i++) {
     fs.writeFileSync(`${i+1}.pdf`,pdf_data.data[i])
    }
  }
}
splitPdf_fn()

pagenumber (split each page of pdf as separate pdf file for given page numbers , ex : 10, 15 => output => 10.pdf, 15.pdf, give pagenumber inside option pageNumbers field)

commonjs

const {split_pdf} = require('pdf-merge-split');
const fs = require('fs');

const option = {
   mode: 'pagenumber',
   pageNumbers: [10,15]
}
const splitPdf_fn = () => {
    const pdf_data = await split_pdf('./test.pdf', option);
  if (pdf_data.success) {
     for (let i = 0; i < pdf_data.totalPages; i++) {
     fs.writeFileSync(`${i+1}.pdf`,pdf_data.data[i])
    }
  }
}

splitPdf_fn()

ES6

import {split_pdf} from 'pdf-merge-split'
import fs from 'fs'

const option = {
   mode: 'pagenumber',
   pageNumbers: [10,15]
}
const splitPdf_fn = () => {
    const pdf_data = await split_pdf('./test.pdf', option);
  if (pdf_data.success) {
     for (let i = 0; i < pdf_data.totalPages; i++) {
     fs.writeFileSync(`${i+1}.pdf`,pdf_data.data[i])
    }
  }
}

splitPdf_fn()

Input

split_pdf accept two argumenst:

• pdf path (string)
• option (object)

option

• mode (string)
  • allpagesplit (split each page of pdf as separate pdf file)
  • range (split each page of pdf as separate pdf file for given range , ex: 10, 15 => output => 10.pdf , 11.pdf .... to 15.pdf)
  • pagenumber (split each page of pdf as separate pdf file for given page numbers , ex : 10, 15 => output => 10.pdf, 15.pdf)
• pageNumbers (Array of Number) (total length must be excat 2) (only required for mode range and pagenumber)

option for allpagesplit

const option = {
    mode: "allpagesplit"
}

option for range

const option = {
    mode: "range",
    pageNumbers: [10,15]
}

option for pagenumber

const option = {
   mode: 'pagenumber',
   pageNumbers: [10,15]
}

Output

{
  success: Boolean,
  data: [] Buffer,
  totalPages: Number
}

• success : return true if all ok
• data : array of buffer raw data, each element is separate pdf
• totalPages : length of data