JPEG is commonly used for which purpose in commercial photography?

• A. For archival storage of masters.
• B. For color-managed final prints.
• C. For web proofs or quick proofs due to small file sizes.
• D. For uncompressed data storage.

Answer: (C)

JPEG’s strength is its ability to shrink image files dramatically through lossy compression, so images look good while staying much smaller. That makes it perfect for web proofs or quick proofs because you can create and share small files quickly, speeding up client review and approvals. In professional workflows, proofs are about fast turnaround and easy viewing, not preserving every pixel, and JPEG delivers that balance.

For archival storage of masters or color-critical final prints, you’d choose formats that preserve more data—RAW or TIFF—since they hold more detail and handle color with greater fidelity. Those options prioritize image integrity over tiny file sizes. JPEG isn’t used for uncompressed data storage because its data is compressed and not recoverable to the original quality, which is why it’s not ideal for masters or high-end final output.

So, the common use is web proofs or quick proofs due to the small file sizes.