Bū tools
Letterbox
Cinema black bars, as a PNG.
What it does
Makes a transparent PNG with black bars, at the exact size of your video. Put it on a layer above your footage to change its ratio, for a cinema look (2.39:1) or a vertical crop.
How
- Pick your video’s size (or type it). By default, it’s the last size you used in Resolution.
- Pick the target ratio, or type your own (2.35, 21:9…). Wider than your video: bars at the top and bottom. Narrower: bars on the sides.
- Bars 50% makes a see-through guide, handy while framing.
- Export PNG: it downloads on a computer, and opens the share menu on a phone.
The bars are always whole pixels, the same on both sides.
Free, no account, nothing is sent: it runs in your browser, even offline.
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