The Maximum image width setting caps how large an image Infinite Uploads will deliver. Anything wider is scaled down on the fly, so a huge original never gets sent at full resolution when a smaller version will look identical on screen.
What it does
Cameras and design tools often produce images far larger than any screen will ever display. A 6000-pixel-wide photo shown in a 1200-pixel column is wasting most of its data. With a maximum width set, we resize the delivered copy down to your cap while keeping the original untouched in your library.
The setting accepts any value from 256 up to 2560 pixels. The default and maximum is 2560, which comfortably covers full-width images on large, high-resolution displays.
Choosing a value
- Leave it at
2560if you're not sure. It's a sensible ceiling that avoids over-sending enormous originals without ever making images look small. - Lower it (for example to
1600) if your theme never displays images very large and you want the leanest possible pages. Pick a width at least as large as the widest spot an image appears in your design.
Your images are already delivered at appropriate sizes for each layout position; this setting is the hard ceiling that no delivered image will ever exceed.
How to change it
- From your WordPress Dashboard, open the Infinite Uploads menu and find the Image Optimization section.
- Enter your value in the Maximum image width (px) field (between
256and2560). - Click Save Settings.
Note: A new width applies to images as they are next requested and re-cached. To apply it to images already cached on the CDN, use the Purge CDN Cache button after saving. See Purging the CDN cache.
Why it works this way
Resizing at delivery, rather than making you generate and store extra image sizes, means a single original can serve every layout and screen at the right dimensions, and you can raise or lower the ceiling any time without re-processing a single file. The 2560 cap keeps even your largest hero images efficient while still looking crisp on the biggest monitors.