Making a picture transparent gives your presentation a professional look makes it stand out from others. To make the presentation slide clean and less noisy, you can make the background transparent in PowerPoint. How to Make a Picture Background Transparent in PowerPoint ? Click and draw over the parts of the image you want to remove.To remove an unwanted portion of the image which was incorrectly guessed by PowerPoint, follow the below steps. Click and draw over the parts of the image you want to keep.You can try to fix up any areas it might have missed. Mark Areas to KeepWhen you select the remove background command, PowerPoint guesses and removes the background on its own.