Resize vs Compress — Which Comes First?

Resize first, then compress. The order matters more than you might think. Here is why and when to make exceptions.

Always resize first

A 4000x3000 photo compressed to 80% quality will always produce a larger file than the same photo resized to 1920x1440 first and then compressed to 80%. Fewer pixels means fewer bytes for the compressor to process and a smaller output.

If you compress first and resize second, you apply lossy compression (explained in our lossy vs lossless guide) to pixels you are about to throw away. You degraded the quality for nothing.

The exception: when resolution matters

For print, archival, or retina displays where you need the full resolution, skip the resize step. Compress at 90-95% quality to preserve detail at full resolution.

For government forms with specific pixel requirements (e.g., 350x350 pixels at 20-300 KB), resize to the exact dimensions first, then compress to hit the file size target.

MiniPx handles both in one step. Set a max width (like 1920px) and a quality level — it resizes first, then compresses, in the optimal order.