Crop vs resize vs scale: which one do you actually need?

Cropping removes edges

A crop keeps a rectangle of the original frame and discards everything outside it. The remaining pixels are untouched, so nothing is distorted — you simply see less of the scene.

Use a crop when the shape is wrong: horizontal footage going to a vertical feed, or a subject sitting too far to one side.

Resizing changes the pixel dimensions

A resize keeps the whole frame but redraws it at a different pixel size, for example 1920×1080 down to 1280×720. Done proportionally it looks fine and the file gets smaller.

Resize when the file is too heavy to upload or the platform caps resolution — not when the framing is wrong.

Scaling and stretching are not the same

Scaling proportionally is safe. Scaling to a new aspect ratio without cropping stretches faces and straight lines, which is the squashed look you see in bad reposts.

If a tool offers to "fit" horizontal video into a vertical frame, check whether it stretches, adds blurred bars, or crops. Cropping is usually the honest answer.

The practical recipe

Crop first to fix the shape and framing, then let the export handle the encode. In VidCrops the crop and the trim happen in one pass on your device, so there is only one re-encode and no upload.