Most platforms have an "Upload" button. For example, in Wikipedia , you use the "Upload file" link, browse for your image, and confirm copyright ownership before hitting upload.
Go to iCloud Photos , select your images, and click the download icon . Download upload jpg
Go to Google Drive , click "+ New" at the top left, and select "File upload" to choose your JPG. Most platforms have an "Upload" button
Downloading involves saving an image from the web or a cloud service to your local storage. Go to Google Drive , click "+ New"
Open your gallery app, select the photo, tap the "Share" icon, and choose the app (like Google Photos or a website) you want to upload it to. Converting Other Formats to JPG
Open Google Photos , select a photo, click the three-dot "More" icon , and choose Download . Images are typically saved as JPEGs unless the original was a different format like PNG.