Under the file name, make sure the document extension is .jpeg or .jpg to ensure you have a JPEG file. Repeat this process for additional pages in the Word document.

You can easily convert PNG files to JPG using software built into your Windows or Mac computer or third-party methods.

The iPhone's HEIC file format is better than JPEG, but it's not always compatible, so you need to convert it.

Understanding HEIC format: Apple's compressed image format saves storage, retains quality, but lacks universal compatibility. Converting hassle-free: Use Preview on MacBook to convert HEIC to JPEG ...

Every file on your hard drive (.jpeg, .html, and the like) can be associated with a compatible program, which will open that file format by default. Some applications will change a format’s ...