For a presentation video you’ll hand to someone using an unknown Mac, choose H.264 unless you know their macOS version and playback app support HEVC. Keep the resolution at or below the source video’s resolution, export a self-contained movie, and test the saved file in QuickTime Player before sharing. This favors broad compatibility over a smaller file, while giving you a clear check of the actual file you plan to send.

Codec and file type answer different questions

A codec compresses the video; a container packages video, audio, and related data into a file. H.264 and HEVC (also called H.265) are codecs. MOV and MP4 are container formats. Changing a filename’s extension does not convert its contents, and an MP4 extension by itself does not guarantee that a particular Mac or app can decode every video and audio stream inside it. Apple documents MOV and MP4 as distinct file types, and QuickTime Player’s export feature creates MOV files rather than MP4 videos. (Apple Developer: AVFileType, Apple Support: Export movies to other file formats and resolutions using QuickTime Player on Mac)

For a recipient’s Mac, the practical choice is usually between H.264 and HEVC. Apple describes HEVC as more efficient than H.264, so it can reduce file size at comparable visual quality. But Apple’s compatibility guidance says HEVC support depends on software and, on some older devices, video resolution and frame rate. H.264 is the safer starting point when the recipient’s setup is unknown; HEVC makes sense when smaller size matters and you’ve confirmed the receiving Mac can play the exported format. (Apple Support: Using HEIF or HEVC media on Apple devices)

Choose based on the receiving Mac and the presentation

Use H.264 if you’re sending the video to a colleague, client, classroom, or event Mac and you cannot check its macOS version or player in advance. Use HEVC if the recipient confirms their setup supports it, or if file size is a concern and you can verify playback there. Apple lists macOS High Sierra 10.13 or later as supporting HEVC media, but on some older devices HEVC support is affected by resolution and frame rate; 1080p or lower and 60 frames per second or lower are more broadly compatible. (Apple Support: Using HEIF or HEVC media on Apple devices)

Also consider what’s in the presentation. If it includes animation, fine text, or screen captures, retain the source resolution when practical; exporting at a higher resolution cannot restore detail absent from the original. If you need transparency or a professional editing master, ordinary compatibility presets may not meet the need. QuickTime Player exposes a transparency-preservation option only for HEVC exports from a movie that has an alpha channel. Check whether the receiving app supports the format and transparency before relying on that workflow. (Apple Support: Export movies to other file formats and resolutions using QuickTime Player on Mac)

Export from QuickTime Player on macOS

If you have a finished movie and need a straightforward H.264 copy, QuickTime Player provides a built-in route:

  1. Open the movie in QuickTime Player and choose File > Export As.
  2. Pick a resolution no larger than the source. For 4K or 1080p, open Format and choose Greater Compatibility; Apple documents this as H.264. The Smaller File Size option exports HEVC instead.
  3. Save the movie, then open that saved copy in QuickTime Player and play through it. Check the opening, a section with motion or screen text, and the ending; confirm the audio is present and synchronized.

QuickTime Player’s available choices vary by resolution: Apple lists H.264 for 480p and 720p, and H.264 or HEVC for 1080p and 4K. The exact output resolution and data rate depend on the original. QuickTime Player exports a QuickTime movie (.mov); it does not provide an MP4 video export option. If a recipient specifically requires MP4, use an exporter that explicitly supports an MP4 container and H.264 video, then check the resulting file in the intended player. Do not simply rename a .mov file to .mp4. (Apple Support: Export movies to other file formats and resolutions using QuickTime Player on Mac)

If you’re exporting from Final Cut Pro

In Final Cut Pro, select the project or clip, choose File > Share > Export File, then open Settings. Choose the publishing format and a video codec available for your source; Apple notes that codec choices depend on the project or clip’s media format. Confirm resolution, color space, and audio format before exporting, since the codec alone does not describe every playback requirement. Apple also lists separate publishing choices such as Computer and Web Hosting, which can help when those match the destination. (Apple Support: Export File and Apple Devices destinations in Final Cut Pro for Mac)

If the receiving Mac is truly unknown, export an H.264 copy and send that. If you have time, send a short sample first and ask the recipient to open it on the presentation Mac, especially when the file will be played through unfamiliar presentation software or an older system. Successful playback on your own Mac confirms that your copy opens there; it cannot guarantee compatibility with a different Mac or app. Choose the codec for the recipient, retain a higher-quality master separately if needed, and verify the actual export before the presentation.

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