In the Preferences for Photos app, click General.Ĭlick Use as System Photo Library. If this is the first time you are launching Photos on Mac in macOS Catalina or later, you may need to make sure that the System Photo Library is on before you can enable the iCloud Photos option. Make sure that the iCloud Photos option is checked. Click Photos in the top left of the menu bar and select Preferences (or click the Command and, keys on the keyboard).Here's how to enable the iCloud Photo Library. ICloud Photo Library is probably the easiest way to keep your photos on Mac and iPhone in sync, but you do need a newer Mac that can get the Photos app on it (macOS Yosemite and later). Otherwise, you'll want to consider using the iOS Files app. HEVC video (similar to HEIC, it is the High-Efficiency video format)Īs long as your photo or video is in one of these formats, it will show up fine in the iOS Photos app once you transfer photos from your Mac to your iPhone.GIF (these only animate in the Photos app on iOS 11 or later or macOS High Sierra or later).HEIF (these are HEIC images and is what your iPhone saves natively if High Efficiency is turned on).These will all appear fine in the Photos app, but you won't be able to tell what format they are on the surface - it will all appear rather seamless. The Photos app on iPhone and iPad can display several different types of file formats without issue. What content can I view on my iPhone or iPad?