Size for each platform

Pick a shape from the aspect menu at the top of the editor, such as 16:9 Wide or 9:16 Vertical. Cinemac reframes the video, and your zooms keep following the action.

Click the aspect menu at the top of the editor (it shows 16:9 Wide to begin with).
Pick a shape. The preview changes straight away.

Aspect	Good for
16:9 Wide	YouTube, websites, presentations, most screens.
1:1 Square	LinkedIn and X feeds.
4:5 Social	Instagram and LinkedIn feeds, where taller takes more room.
9:16 Vertical	Reels, TikTok and YouTube Shorts.
4:3 Standard and 3:4 Portrait	Older displays, slides and documents.
Auto	The recording's own shape, with padding on every side.

The recording's own shape, with padding on every side. — **Auto**

A square frame with the recording fitted inside. — **1:1**

A slightly tall frame with the recording zoomed in. — **4:5**

A tall vertical frame, zoomed in close on part of the recording. — **9:16**

Vertical videos

A wide recording is small in a tall frame. Cinemac helps in two ways:

Your zooms still follow your clicks, so the important part stays big.
Fill the frame, in Zoom › More settings, zooms in far enough that no empty bands show.

For a vertical video, it also helps to record a narrow window or area. See Tips for a clean recording.

Size in pixels

The export's Resolution sets the final size: 1080p means the shorter side is 1080 pixels, so a 9:16 video at 1080p is 1080 × 1920.