How image compression works
Understand lossless and lossy encoding, quality controls, dimensions, transparency, and why results vary between images.
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File size
Compression basics, target limits, and troubleshooting when an image is still too large.
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3 guidesHow to compress an image to 500 KB or less
Meet a 500 KB image target with measured output, use a 500,000-byte limit, and check quality and dimensions before sharing.
Read articleWhy compressed images are still too large
Diagnose detailed photos, oversized dimensions, PNG behavior, metadata, and target settings when compression is not enough.
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