JPG 转 PNG
PNG 无损存储，需要编辑、加注释或反复保存 JPG 照片时，能防止画质越改越差。
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JPG
The most common photo format. Small file sizes and opens everywhere — ideal for photos and everyday images.
PNG
A sharp, high-quality image format with support for transparent backgrounds. The go-to choice for screenshots, logos, and icons.