To add or change a photo from an Android or iPhone: 1  Open the LinkedIn app. 2  Tap the in logo on the top left. 3  Tap your profile photo below the Home section.4  Tap your profile photo again (it should have a camera icon on the bottom left). Change your profile photo by clicking Change photo. 2  Select the photo you would like and click Open. 3  Click Upload Photo. 4  You can upload JPG, GIF or PNG files. 5  File size - 10MB maximum.