Open the site: JPG . Drag and drop JPG files to optimize and compress them online. Or just use a code sample in JavaScript. 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. Compress JPG without losing quality. Call the Document.cleanup() method. The resulting code may vary depending on the output file format. Get the compressed result as a JPG file.

Why compress JPG files in JavaScript?

Compressing JPG allows you to improve the use of disk spaces and network traffic without sacrificing data quality.

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

We support a variety of output file formats for JPG optimization, including DOCX, DOC, RTF, ODT, EPUB, JPG, PNG, XLS, XLSX, WPS and many more.

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

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

Compress JPG In Javascript

Compress JPG file in JavaScript

Make large JPG files smaller without loss of quality. Delete unnecessary and unused data. Shrink the size of a JPG file in code. The JavaScript library provides developers with an integrated API to optimize JPG content.

Reduce the size of JPG files using JavaScript

JavaScript library is a stand-alone solution and doesn't require any third party software installed.

Lossless compression and deep content optimization made easy with 'Aspose.Words for Node.js via .NET'. The following example demonstrates how to optimize the content of a JPG file in JavaScript:

Code example in JavaScript to compress JPG files

Input file

Upload a file you want to optimize/compress

Run code

Output format

Select the target format from the list

JpegQuality

50%

npm install @aspose/words

Copy

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

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

shape = builder.insertImage("Input.jpg")

var saveOptions = new aw.Saving.ImageSaveOptions(aw.SaveFormat.Jpeg)
saveOptions.jpegQuality = 50
shape.getShapeRenderer().save("Output.jpg", saveOptions)

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

var doc = new aw.Document("Input.jpg");
doc.cleanup();

var shapes = doc.getChildNodes(aw.NodeType.Shape, true)
for (var shape of shapes) {
    if (shape.hasImage()) {
        // It's up to developer to choose the library for image compression.
        const imageData = shape.getImageData().toStream();

        // ...
        // Compress image and set it back to the shape.
        shape.getImageData().setImage(compressedImageBuffer);
    }
}

var saveOptions = new aw.Saving.PdfSaveOptions()
saveOptions.cacheBackgroundGraphics = true

doc.save("Output.jpg", saveOptions)

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

var doc = new aw.Document("Input.jpg");
doc.cleanup();

var shapes = doc.getChildNodes(aw.NodeType.Shape, true)
for (var shape of shapes) {
    if (shape.hasImage()) {
        // It's up to developer to choose the library for image compression.
        const imageData = shape.getImageData().toStream();

        // ...
        // Compress image and set it back to the shape.
        shape.getImageData().setImage(compressedImageBuffer);
    }
}

doc.save("Output.jpg")

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

var doc = new aw.Document("Input.jpg");
doc.cleanup();

var shapes = doc.getChildNodes(aw.NodeType.Shape, true)
for (var shape of shapes) {
    if (shape.hasImage()) {
        // It's up to developer to choose the library for image compression.
        const imageData = shape.getImageData().toStream();

        // ...
        // Compress image and set it back to the shape.
        shape.getImageData().setImage(compressedImageBuffer);
    }
}

var saveOptions = new aw.Saving.OoxmlSaveOptions()
saveOptions.compressionLevel = aw.Saving.CompressionLevel.Maximum

doc.save("Output.jpg", saveOptions)

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

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

shape = builder.insertImage("Input.jpg")

var saveOptions = new aw.Saving.ImageSaveOptions(aw.SaveFormat.Jpeg)
saveOptions.jpegQuality = 50
shape.getShapeRenderer().save("Output.jpg", saveOptions)

            

					Run code
				

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

How to compress JPG in JavaScript

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.
Compress JPG without losing quality.
Call the Document.cleanup() method. The resulting code may vary depending on the output file format.
Get the compressed result as a JPG file.

JavaScript library to optimize and compress JPG 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.