This article guides how to put signature on photo using Java where the destination photo can be in any supported image format, such as JPG, PNG, BMP, TIFF, etc. It has details to set the IDE, a list of steps, and a sample code demonstrating how to put your signature on a photo using Java. You will learn to work with individual pixels in a signature image in PNG format for changing its transparency.

Steps to Insert Signature in JPG using Java

1. Set the IDE to use Aspose.Imaging for Java to put a signature on an image
2. Load the main image in any format and the PNG signature image as a RasterImage
3. Prepare the signature image by loading it in memory using the cacheData() method
4. Parse through each pixel in the signature image and set it transparent if the color is close to white
5. Save the updated pixel in the signature and save it for rendering
6. Load the main image into the Graphics object
7. Call the drawImage() to render the updated signature image on the main image and save it

These steps summarize how to put a signature on photos using Java. First, set up your project with Aspose.Imaging for Java and load both your main image and the signature image. Then, make the white parts of the signature transparent, place it onto the main image, and save the final result with the signature applied.

Code to Put Signature on Image using Java

This code shares how to put signature in JPG using Java. The RasterImage.loadArgb32Pixels() method returns an array of pixels that can be accessed one by one to check their color and set the whitish color to transparent. The saveArgb32Pixels() method sets the updated pixels array back to the image after making the white background transparent.

This article has taught us the process to paste a signature on an image. To convert a DNG image to a JPEG file, refer to the article Convert DNG to JPG using Java.