A size error can come from the selected file, an account limit, a container restriction or a connection issue. Verify the actual file and current destination requirement before changing settings.

Confirm the real file size

Check the file properties and confirm which copy you selected. Similar filenames and export folders can lead to uploading the original by mistake.

Look for destination rules

Limits may differ by account, placement, plan or upload method. Read the current message in the destination app and leave headroom below the stated maximum.

Reduce in a sensible order

Trim unused content, lower excessive dimensions, then adjust quality. This sequence often preserves more useful detail than immediately choosing the lowest quality.

A practical checklist

  1. Check the chosen file and actual size.
  2. Confirm the current destination limit.
  3. Trim unnecessary duration.
  4. Reduce resolution only if it exceeds the viewing need.
  5. Export a fresh copy and verify it is below the limit.

Common mistakes to avoid

  • Using an old upload limit from a search result.
  • Confusing MB and Mb.
  • Repeatedly changing the original file instead of making a copy.

Questions people ask

Why does a file below the limit still fail?

The service may have a lower effective limit, reject a codec or encounter a network or account issue. Read the full error.

Should I zip the video?

Compression formats generally do not make already-compressed video much smaller. A zip can even add slight overhead.

Try the local VideoCompact tool ↗