Why convert several JPG into PNG in JavaScript?

Converting a group of JPG to a single PNG allows you to handle materials more effectively.

What output file formats can I use to merge JPG files?

We support a variety of output file formats for JPG merging, including PDF, DOCX, DOC, HTML, RTF, Markdown, XML, ODT, JPG, PNG, TIFF, TXT and many more.

What is the maximum JPG size supported by Aspose.Words for Node.js via .NET?

There are no size limits to merge JPG files using Aspose.Words for Node.js via .NET.

Several JPG Into PNG Javascript

Q: How to convert several JPG into PNG?

Open the site: JPG into PNG . Drag and drop JPG files to quickly convert them into PNG. Or just use a code sample in JavaScript with a few lines of code. Install Aspose.Words for Node.js via .NET. Add a library reference (import the library) to your JavaScript project. Open the source JPG file in JavaScript. Convert several JPG files into PNG in a few seconds. Call the appendDocument() method, passing an output filename with PNG extension. Get the result of conversion JPG into PNG.

Convert JPG to PNG in JavaScript

Modern JavaScript library allows Node.js via .NET developers to convert JPG to PNG image format with a few lines of code. JPG image conversion engine analyses the original graphical content, and exports the combined picture to PNG format.

Use JavaScript to convert JPG to PNG image format with maximum flexibility and speed. Run online live demo and check the highest PNG image quality right in a browser. JPG Conversion API supports a bunch of useful options.

Merge JPG to PNG in JavaScript

To convert several JPG to PNG just use JavaScript library that handles all low-level details.

Convert multiple JPG images and save the result as a single PNG image. If you develop code in JavaScript, image format conversion will be simpler than it sounds. See JavaScript example that iterates through image files and combines them into PNG:

Code example in JavaScript to combine multiple JPG to PNG

Input files

Upload a file you want to merge

Run code

Upload a file you want to merge

Output format

Select the target format from the list

npm install @aspose/words

Copy

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

var fileNames = [ "Input1.jpg", "Input2.jpg" ]

var doc = new aw.Document()
var builder = new aw.DocumentBuilder(doc)

shapes = fileNames.map(fileName => builder.insertImage(fileName))

// Calculate the maximum width and height and update page settings 
// to crop the document to fit the size of the pictures.
pageSetup = builder.pageSetup
pageSetup.pageWidth = Math.max(...shapes.map(shape => shape.width));
pageSetup.pageHeight = shapes.reduce((sum, shape) => sum + shape.height, 0);
pageSetup.topMargin = 0
pageSetup.leftMargin = 0
pageSetup.bottomMargin = 0
pageSetup.rightMargin = 0

doc.save("Output.png")

			

					Run code
				

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

How to convert several JPG into PNG

Install Aspose.Words for Node.js via .NET.
Add a library reference (import the library) to your JavaScript project.
Open the source JPG file in JavaScript.
Convert several JPG files into PNG in a few seconds.
Call the appendDocument() method, passing an output filename with PNG extension.
Get the result of conversion JPG into PNG.

JavaScript library to convert several JPG into PNG

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.