Article: This method allows you to upload all of your photos to iCloud, at which point you can download them onto any computer with Internet access; however, your iCloud storage must exceed the amount of storage that your photos take up. You start with 5 gigabytes of free storage, but you may need to upgrade your storage before you can store your photos. Tap the Settings app icon, which resembles a grey box with gears on it. It's the top section in the Settings menu that contains your name and image if you've added one. If you are not signed in, tap Sign in to iPhone, enter your Apple ID and password, then tap Sign In. It's in the second section of the menu, near the middle of the screen. It's near the top of the "APPS USING ICLOUD" section. It will turn green {"smallUrl":"https:\/\/www.wikihow.com\/images\/1\/15\/Iphoneswitchonicon1.png","bigUrl":"\/images\/thumb\/1\/15\/Iphoneswitchonicon1.png\/46px-Iphoneswitchonicon1.png","smallWidth":460,"smallHeight":300,"bigWidth":"46","bigHeight":"30","licensing":"<div class=\"mw-parser-output\"><p>I edited this screenshot of an iPhone\n<\/p><p>License: <a rel=\"nofollow\" class=\"external text\" href=\"http:\/\/en.wikipedia.org\/wiki\/Fair_use\">Fair Use<\/a><br>\n<\/p><\/div>"}. At this point, your existing Camera Roll photos and videos will be uploaded to your iCloud account as long as you're connected to Wi-Fi.  The upload process can take several hours if you have a lot of photos, so be patient. If you'd like to save storage space on your iPhone, tap Optimize iPhone Storage to store smaller versions of photos on your device. It will turn green {"smallUrl":"https:\/\/www.wikihow.com\/images\/1\/15\/Iphoneswitchonicon1.png","bigUrl":"\/images\/thumb\/1\/15\/Iphoneswitchonicon1.png\/46px-Iphoneswitchonicon1.png","smallWidth":460,"smallHeight":300,"bigWidth":"46","bigHeight":"30","licensing":"<div class=\"mw-parser-output\"><p>I edited this screenshot of an iPhone\n<\/p><p>License: <a rel=\"nofollow\" class=\"external text\" href=\"http:\/\/en.wikipedia.org\/wiki\/Fair_use\">Fair Use<\/a><br>\n<\/p><\/div>"}. This will ensure that future photos will be uploaded to iCloud whenever you have an Internet connection. Go to https://www.icloud.com/ in a browser. Enter your Apple ID email address and password, then click →. If you're already logged into iCloud, skip this step. It's a multicolored pinwheel-shaped icon. You'll find this in the upper-left side of the page. While holding down Ctrl (Windows) or ⌘ Command (Mac), click each photo that you want to download. It's the cloud-shaped icon with a downward-facing arrow that's in the top-right side of the page. Doing so will prompt the photos to download onto your computer, though you may be asked to choose a  download location first.

What is a summary?
Make sure that you have enough space. Open your iPhone's  Settings. Tap your Apple ID. Tap iCloud. Tap Photos. Tap the white "iCloud Photo Library" switch . Tap the white "My Photo Stream" switch . Open iCloud on a computer. Log into iCloud. Click  Photos. Click the Photos tab. Select photos to download. Click the "Download" button .