Photoshop is a powerful image editor that can be used to flatten images, make them look more like one big image, or even create new images from scratch. If you’re looking to flatten an image in Photoshop, there are a few things you need to know. first, the image must be in RGB color space. second, the size of the flattened image must be at least 100 KB. Finally, the file must be saved as a JPEG or PNG file. Here’s how to flatten an image in Photoshop: 1. Open Photoshop and click on the File menu and select “Open With.” 2. In the “Open With” dialog box, select “Photoshop.” 3. Click on the “Flatten Image” button and then enter the dimensions of the flattened image (in KB). 4. Click on OK and then close Photoshop.