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RAW file size guides

Plain answers on shrinking RAW photos. Each guide covers what changes and what to test first.

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• Fuji RAF files too big? How to shrink themWhy X-T5 files are about 30 MB, what the camera's RAW settings do, and what shrinking costs.
• Lossy DNG vs RAW in Lightroom: what you keep and what you loseWhat a lossy DNG is, what still works in Lightroom, and when to keep the original.
• RAW photos filling your hard drive? Options that actually helpCulling, archiving, the drive maths, and backups, in a sensible order.
• JPEG XL DNGs in Lightroom: what they are and who can open themWhich apps open the format, which may not, and the older Classic format.

Our numbers come from our own tests. Most camera numbers use one sample file per brand, and some of those samples are public files. Test your own files before you rely on them.

Squeeze is a Mac app that makes RAW files about 85% smaller. Free to download for now. Pay what you want opens soon. Get it at squeeze.photos/#install.