Lightworks: How to Make A Vertical/Portrait Video With Blurred Background/Sides.
How to create/overlay a vertical video clip with a blurred stretched background of the original. A video editing tutorial.

Lightworks Beginners Tutorial: Quick And Easy Video Editing.

Lightworks: Proxy Video Clip Editing. How To Edit Large/Long (4k) Video Clips.

Lightworks is a professional non-linear editing system (NLE) for editing and mastering digital video in various formats, including 2K and 4K resolutions, and television in PAL, NTSC, and high-definition formats. It was an early developer of computer-based non-linear editing systems, and has been in development since 1989 and won a 2017 EMMY Award for pioneering digital nonlinear editing. Lightworks has millions of adoptors worldwide due to the software being available across three platforms in Windows, Mac and Linux. The development of an open source version was announced in May 2010. No source code of the program has yet been released.

The free version comes with a limited number of features:
• Realtime effects
• Advanced multicam editing
• Second monitor output
• Ability to import a wide range of file types
• Export to Vimeo (H.264/MPEG-4) up to 720p HD
• Export to YouTube (H.264/MPEG-4) up to 720p HD

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