Modern JavaScript library allows Node.js via .NET developers to convert image to PNG image format with a few lines of code. image conversion engine analyses the original content, and exports the combined result as one PNG image.
Use JavaScript to convert image to PNG image format with maximum flexibility and speed. Run online live demo and check the highest output PNG image quality right in a browser. image Conversion API supports a bunch of useful options.
To convert image files to PNG image just use JavaScript library that handles all low-level details.
Convert multiple image 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 source image files and combines them into one PNG image:
npm install @aspose/words
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const aw = require('@aspose/words');
var fileNames = [ "Input1.png", "Input2.png" ]
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")
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.
This package is compatible with Node.js 14.17.0 or higher.
You can merge image to many other file formats: