起因是自己的一个生图项目把图片放到了 CLoudfare R2 上，不过上传之前没有做好压缩优化，导致有很多存量的图片很大，就做了这一个小工具将 cloudfare r2 上的图片批量压缩并上传覆盖，最后有一个压缩的 report 。 地址： https://github.com/zhangchenchen/reduce_cloudfare_image 效果大致如下： Output Example Files to be processed: +--------------------------------------------------------------+------+----------+----------+ | File Path | Format| Size(KB) | Size(MB) | +==============================================================+======+==========+==========+ | themes/steampunk-game-community/steampunk-game-community.png | PNG | 664.5 KB | 0.65 MB | +--------------------------------------------------------------+------+----------+----------+ | Total | 1 file| 664.5 KB | 0.65 MB | +--------------------------------------------------------------+------+----------+----------+

Processing 1 file, total size 0.65 MB. Continue? (y/n): y

Processing images: 100%|████████████████████████████████████| 1/1 [00:06<00:00, 6.36s/it]

Image Compression Report: +--------------------------------------------------------------+----------+----------+----------+-------+--------+ | File | Original | Compressed| Space | Ratio | Time | | | Size | Size | Saved | | | +==============================================================+==========+==========+==========+=======+========+ | themes/steampunk-game-community/steampunk-game-community.png | 664.5 KB | 529.1 KB | 135.3 KB | 20.4% | 2.7s | +--------------------------------------------------------------+----------+----------+----------+-------+--------+ | Total | 664.5 KB | 529.1 KB | 135.3 KB | 20.4% | - | +--------------------------------------------------------------+----------+----------+----------+-------+--------+ | Total(MB) | 0.65 MB | 0.52 MB | 0.13 MB | 20.4% | - | +--------------------------------------------------------------+----------+----------+----------+-------+--------+

Processed 1 file Total space saved: 0.13 MB Average compression ratio: 20.4%