Create and modify PDF documents in any JavaScript environment.

Designed to work in any modern JavaScript runtime. Tested in Node, Browser, Deno, and React Native environments.

Table of Contents

• Usage Examples
  • Modify Existing PDFs Get PDFDocument Object
    • Empty PDF Document
    • PDF Document From File
    • PDF Document From Unit8Array/ArrayBuffer
  • PDF Array from HTML File Object
  • PDF Array To Blob
  • Merge PDF
  • Rotate PDF
  • Split PDF
  • Break Single PDF File Into Multiple PDF
  • Flatten PDF Forms
  • Resize PDF
  • Add Margin to PDF
  • Edit PDF Metadata
  • Remove PDF Metadata
  • Add Page Numbers to PDF
  • JPG To PDF
• Installation
• Documentation
• License

Usage Examples

• A Project Made Using pdf-actions is PDFActions : GITHUB Repo

Modify Existing PDFs Get PDFDocument Object

To Modify Esisting PDF Files You Need to First Convert It Into a PDFDocument Object

Empty PDF Document

import { createFileDoc } from "pdf-actions";

const EmptyPDFDocument = await createFileDoc.EmptyPDFDocument();

PDF Document From File

import { createFileDoc } from "pdf-actions";

const PDFDocument = await createFileDoc.PDFDocumentFromFile(file); // file is a HTML File Object from input tag

PDF Document From Unit8Array/ArrayBuffer

import { createFileDoc } from "pdf-actions";

const PDFDocument = await createFileDoc.PDFDocumentFromPDFArray(fileArray); // fileArray is a Unit8Array/ArrayBuffer

PDF Array from HTML File Object

import { pdfArray } from "pdf-actions";

const PDFArray = await pdfArray(file); // file is a HTML File Object from input tag

PDF Array To Blob

import { pdfArrayToBlob } from "pdf-actions";

const PDFBlob = await pdfArrayToBlob(fileArray); // fileArray is a Unit8Array

Merge PDF

import { mergePDF } from "pdf-actions";

const MergedPDFDocument = await mergePDF(filesDocArray); // filesDocArray is a Array of PDFDocument Object

Rotate PDF

import { rotatePDF } from "pdf-actions";

const RotatedPDFDocument = await rotatePDF(fileDoc, degrees);
/*
fileDoc is a PDFDocument Object
degrees is a integer
*/

Split PDF

import { splitPDF } from "pdf-actions";

const SplitPDFDocument = await splitPDF(fileDoc, range, degree);
/*
fileDoc is a PDFDocument Object
range : Page Numbers(both inclusive) is array of two integers - [start,stop]
degree? is a optional parameter and integer
*/

Break Single PDF File Into Multiple PDF

import { breakPDF } from "pdf-actions";

const BreakPDFDocumentsArray = await breakPDF(
  fileDoc,
  pagesInEachFile,
  haveLastPDF,
  degree,
  breakRange
);
/*
fileDoc is a PDFDocument Object
pagesInEachFile is a integer denoting Number of Pages in Each Broken PDF
haveLastPDF is a boolean to whether return the last pdf document irrespective of maxPages
degree? is a optional parameter and integer
breakRange? is a optional paramenter that is a array of two integers [start,stop] that splits the pdf(both inclisive) before breaking it
*/

Flatten PDF Forms

import { flattenPDFForm } from "pdf-actions";

const PDFDocumentWithFormsFlattened = await flattenPDFForm(fileDoc);
/*
fileDoc is a PDFDocument Object
*/

Resize PDF

import { resizePDF } from "pdf-actions";

const PDFDocumentWithFormsFlattened = await resizePDF(
  fileDoc,
  size,
  orientation,
  position,
  degree
);
/*
fileDoc is a PDFDocument Object
size? optional paramenter : string : 2A0 , 4A0 , A[0-10] , B[0-10] , C[0-9] , Executive , Folio , Legal , Letter , RA[0-4] , SR[0-4] , Tabloid 
orientation? optional paramenter : string : Portrait or Landscape
position? optional parameter - Where The Content Should Be : string : Start , Center , End
degree? rotate pdf angle : integer
*/

Add Margin to PDF

import { addMarginPDF } from "pdf-actions";

const AddedMarginPDFDocument = await addMarginPDF(
  fileDoc,
  marginMillimeter,
  degree
);
/*
fileDoc is a PDFDocument Object
marginMillimeter? : optional paramenter : array of length 4
  marginMillimeter[0] -> Left
  marginMillimeter[1] -> Top
  marginMillimeter[2] -> Right
  marginMillimeter[3] -> Bottom
degree? rotate pdf angle : integer
*/

Edit PDF Metadata

import { editMetaData } from "pdf-actions";

const NewMetaDataPDFDocument = await editMetaData(fileDoc, options);
/*
fileDoc is a PDFDocument Object
options = {author,title,creator,keywords,documentCreationDate,documentModificationDate,subject,producer}
*/

Remove PDF Metadata

import { removeMetaData } from "pdf-actions";

const RemovedMetaDataPDFDocument = await removeMetaData(fileDoc);
/*
fileDoc is a PDFDocument Object
*/

Add Page Numbers to PDF

import { addPageNumbers } from "pdf-actions";

const PDFDocumentWithPageNumbers = await addPageNumbers(
  fileDoc,
  pageNumberPosition,
  margin,
  startingPage,
  endingPage,
  startingNumber,
  textSize
);
/*
fileDoc is a PDFDocument Object
pageNumberPosition? : optional : is one of the following string
  - b-l : Bottom Left
  - b-c : Bottom Center : Default
  - b-r : Bottom Right
  - t-l : Top Left
  - t-c : Top Center
  - t-r : Top Right
margin? : optional : is one of the following string
  - Recommended : Default
  - Small
  - Big
startingPage? : optional : is a integer should be >=1 and <=max pages in pdf
endingPage? : optional : is a integer should be >=1 and <=max pages in pdf and >= startingPage
startingNumber? : optional : is a integer denoting the first page number : 1 by default
textSize? : optional 16 by default is a integer
*/

JPG To PDF

import { imageToPDF } from "pdf-actions";

const PDFDocumentFromJPG = await imageToPDF(
  image,
  pageNumberPosition,
  margin,
  startingPage,
  endingPage,
  startingNumber,
  textSize
);
/*
image is a base64 data string
pageSize? : optional : is one of the following string
  - Same as Image
  - 2A0 , 4A0 , A[0-10] , B[0-10] , C[0-9] , Executive , Folio , Legal , Letter , RA[0-4] , SR[0-4] , Tabloid 
pageOrientation? : optional : should pe portrait in case of Same as Image
imagePosition? : optional : should be Start in case of Same as Image
degree? : rotate created PDF
marginMillimeter? : optional paramenter : array of length 4
  marginMillimeter[0] -> Left
  marginMillimeter[1] -> Top
  marginMillimeter[2] -> Right
  marginMillimeter[3] -> Bottom
*/

Installation

NPM Module

To install the latest stable version:

• With npm

npm install --save pdf-actions

• With yarn

yarn add pdf-actions

This assumes you're using npm or yarn as your package manager.

Documentation

The repo for the project site (and generated documentation files) is located here: https://github.com/ManasMadan/pdf-actions

License

MIT