Long-tail task
Use this when your attachment has strict file-size limits but still needs to stay readable.
Break large reports into sections before optimization.
Drop annexes and references that are not required for submission.
Apply balanced or maximum profile based on upload limit.
Prefer split first, then compress.
Use balanced mode, avoid overly aggressive grayscale.
Enable grayscale and remove unnecessary pages before final export.
Run split-by-count and send in two files with clear naming.
Switch from maximum to balanced, then only trim pages instead of extra compression.
Compress sections separately, then merge the smallest successful versions.