What file formats can I edit with JavaScript library?

We support a variety of file formats to edit, including DOCX, DOC, PDF, HTML, RTF, Markdown, ODT, XML, TXT and many more. Install Document Editor for JavaScript. Add a library reference (import the library) to your JavaScript project. Open a document in JavaScript. Insert content at the beginning of the document. Call the save() method, passing the name of the output file with the required extension. Get the edited result.

What is the maximum file size allowed to edit a file using this JavaScript library?

There are no size limits to edit files.

Edit Word, PDF In Javascript

Edit Documents in JavaScript

This JavaScript library provides developers with a powerful API to edit Word, PDF documents programmatically. Easily integrate document modification features into your software. Our solution supports the editing of PDF, DOCX, DOC, RTF, ODT, EPUB, HTML and many other file formats in JavaScript.

Change PDF, Word in JavaScript

The task of editing a document programmatically in JavaScript is the task of modifying elements in the document tree. It is also known as the 'DOM' - the programming model for interacting with document elements and their properties.

Editing features for complex data structures are inseparable from the advanced search function. To ensure the highest level of flexibility, our library provides JavaScript developers with Regex search functionality. This approach expands the possibilities to edit text, allowing the use of templates for dynamic content modification.

Edit text in documents using JavaScript

Programmatic modification of Word and PDF documents is an integral part of digital workflow. Edit text in PDF, Word, modify tables, insert graphs using external data.

JavaScript library is a stand-alone solution to edit documents which doesn't need Microsoft Word or Acrobat Reader installed. It is ready for industrial use and provides the full range of operations to modify Word, PDF and other file formats:

Insert new document elements
Update existing elements: paragraphs, lists, tables, images, links, fields, charts, etc.
Apply and modify styles, which are collections of formatting attributes
Search for specific text patterns and replace them with new text
Export the result to the Word, PDF and many other file formats using 'Document.Save' method
Delete unnecessary elements (cut chapters, sections, pages, paragraphs)

Edit table using JavaScript

One of the most requested features is dynamic table generation and table modification in Word and PDF documents. Working with tables is easy with JavaScript library: edit tables, update tables and extract table text in JavaScript code.

The following example shows how to change a Word document in JavaScript code:

JavaScript example to edit a document

Input file

Upload a document you want to modify

Run code

Output format

Select the target format from the list

npm install @aspose/words

Copy

				
const aw = require('@aspose/words');

var doc = new aw.Document("Input.docx")
var builder = new aw.DocumentBuilder(doc)

// Insert text at the beginning of the document.
builder.moveToDocumentStart()
builder.writeln("Morbi enim nunc faucibus a.")

doc.save("Output.docx")

const aw = require('@aspose/words');

var doc = new aw.Document("Input.docx")
var builder = new aw.DocumentBuilder(doc)

// Insert table at the beginning of the document.
builder.moveToDocumentStart()
builder.startTable()
builder.insertCell()
builder.write("Row 1, cell 1.")
builder.insertCell()
builder.write("Row 1, cell 2.")
builder.endTable()

doc.save("Output.docx")

const aw = require('@aspose/words');

var doc = new aw.Document("Input.docx")
var builder = new aw.DocumentBuilder(doc)

// Insert image at the beginning of the document.
builder.moveToDocumentStart()
builder.insertImage("Image.png")

doc.save("Output.docx")

				Run code

You may freely copy this code and use it in any applicable purpose

How to edit Word, PDF and other file formats

Install Document Editor for JavaScript.
Add a library reference (import the library) to your JavaScript project.
Open a document in JavaScript.
Insert content at the beginning of the document.
Call the save() method, passing the name of the output file with the required extension.
Get the edited result.

JavaScript library to work with files

We host our Node.js via .Net packages in NPM repositories. Please follow the step-by-step instructions on how to install "Aspose.Words for Node.js via .NET" to your developer environment.