Hi, I know a great service for enlarging images without losing quality. I recommend you to use depositphotos website. It's quite user-friendly and effective. The process is pretty simple. Go to https://depositphotos.com/upscaler.html, upload your image, choose the right settings to enlarge, and the service will perform the operation on its own. Registration is optional, but if you register, you can save your settings and manage your files.