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Video compression workflow

Compress MP4 files to 25 MB

Reach the classic email attachment limit without sacrificing playback clarity.

Typical output: 180 MB screen recording → 24.6 MB MP4 (1080p)Input format: MP4Target: 25 MB
Download Compresto for macOS

Step-by-step

  1. 1Open Compresto and drag your MP4 into the main window.
  2. 2Choose the Target file size option to enforce a maximum output.
  3. 3Enter 25 MB in the size field; Compresto updates the projected result automatically.
  4. 4Start the compression and let Compresto process the file.
  5. 5Review the exported MP4 and attach it to your email or ticket reply.

Recommended preset

  • Compression mode

    Target file size

  • Target size

    25 MB

  • Output format

    MP4 (default)

Best for

  • Customer support walkthroughs sent via email
  • Sales follow-up clips embedded in CRMs
  • Knowledge-base videos that need fast downloads

Why it works

  • Precise target-size control keeps exports at or below 25 MB
  • Works directly with MP4 files recorded on macOS, iOS, or Windows
  • Produces a share-ready MP4 that many email platforms accept without extra steps

Pro tips

  • Set the target a megabyte lower (24 MB) to leave headroom for email wrappers.
  • Trim unnecessary intro or outro footage before compressing to save extra space.
  • Keep the original alongside the compressed copy so you can re-export with a different limit later.

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