Bigger isn't automatically better.
That's particularly true when you're processing thousands—or tens of thousands—of photographs.
Why Image Size Matters in High-Volume Photography Workflows examines something that sounds like a technical detail but can affect nearly every part of a production workflow.
Oversized image files take longer to transfer, upload, process, back up, and deliver. Multiply those differences across a large school, sports league, dance studio, or event and seemingly insignificant delays begin to compound.
The goal isn't simply to make files smaller.
It's to understand the resolution actually required for the products you're delivering and create files that are appropriately sized for that purpose.
For high-volume photographers, file size is ultimately a workflow optimization decision.
A few megabytes saved on one photograph isn't particularly meaningful.
A few megabytes saved across 20,000 photographs can be.
Read: Why Image Size Matters in High-Volume Photography Workflows