How much can I compress an image?
Typical savings: 50-80% for JPEG/WebP at quality 80%. PNG is lossless with smaller savings. WebP gives the best compression. First Resize to the dimensions you need, then compress.
Does compression reduce quality?
At 80%+ quality, compression is nearly invisible. Below 60%, artifacts may appear. If over-compressed, the Sharpen tool can help restore some clarity.
What format gives the smallest file?
WebP produces the smallest files at equivalent quality, then JPEG. Use the Convert tool to switch formats, then compress here. For web embedding, consider the Image to Base64 tool.