Certain platforms do not allow you to attach or send files that exceed a certain size. If you are using such a platform, then you may want to check if the image you want to upload is suitable or not. iPhone users can easily check the file size of pictures. Here’s how. Through Photo Investigator Application You can find the file size of the picture through photo investigator app. So, here are the steps you can follow. • Firstly, you have to launch the App Store on your iPhone. • After that, you should tap on the Search option. • Then you should enter “Photo Investigator” in the search section. • Thereafter select the “Photo Investigator” option. • Later you should select “GET.” • Now, tap on INSTALL. • After that, you have to input your Apple ID and password. • Then you should launch the Photo Investigator App. • Thereafter you should choose the photo icon and select OK. • Now, you have to select “All Photos...