Preserve original format: This option retains the current movie formats. In this case, any movies in formats incompatible with iOS or iPadOS aren’t optimized and therefore don’t play on iOS or iPadOS devices.
Movie Quality: Set the maximum resolution for movies. Movies with a resolution smaller than the maximum aren’t scaled up.
Click one of the following buttons to apply the adjustments:
Reduce This File: Applies the settings to the original document.
Reduce a Copy: Applies the settings to a copy of the document and preserves the original document. Enter a name for the copy of the document and choose where to save the copy, then click Save.
Note: It’s possible to choose a combination of options that makes the file size larger.