Almost every virtual background problem is a sizing problem before it is a compression problem. Video calls render backgrounds inside a 16:9 frame, so a square or portrait image is either cropped or letterboxed the moment the platform touches it. Resizing to the frame yourself gives you control over what stays in the picture instead of letting an automatic crop cut the interesting part out. Skwish resizes to a 1920x1080 target — or any custom dimensions you need for a different platform — and compresses the result in one pass. You can see the pixel dimensions and the file size before downloading, which matters when you are choosing between a few candidate photos. It all runs in the browser, so a personal photo used as a background never gets uploaded to a service just to be resized.