You can upload JPEG images from your computer using iCloud.com. Select the photos you want to add from your computer, then follow the onscreen instructions.
How to upload photos to iCloud from Mac
Once you've turned everything on, uploading photos to iCloud is easy:
Hold and drag your finger across the images you want to select. When selected, the images will be overlayed with a blue tick. 4.
Open the photo, select "Edit" and tap the "More" () icon. Select "Markup," tap the "+" icon and select "Text." When the text box appears on the photo, double-tap it to raise the keyboard. Type the caption and use the options at the bottom of the screen to change the font, color and size.
On your Mac or PC, log into your Apple account at www.icloud.com.
Photos stored in iClouds photo stream are only stored for up to 30 days and up to 1000 photos (whichever you reach first). You should save any photos you want to keep to your photo roll or iPhoto within the 30 days allocated.
Open Safari and go to iCloud.com. Log in with your iCloud account. In the Photos tab, tap Upload > Photo Library. Select the picture(s) you want to upload and tap Add.
No matter how many photos My Photo Stream uploads to the cloud, the local Photo Stream album on any iOS or iPadOS device only keeps up to 1,000 images. My Photo Stream doesn't support videos, live photos, and formats such as HEIF or HEVC.
How to select more than one photo on iCloud
If you're wondering how to select multiple photos on Mac, you can hold Shift and then use your arrow keys or click on the last photo you want to highlight. This will affect all the photos in a row.
If you don't use iCloud Photos
To upload photos to iCloud when using a Mac, you just need to drag and drop your chosen files into the Photos library. Any photos or videos saved here will be automatically uploaded to iCloud Photos.