Online file converter
Convert images, PDF, and text encodings in one hub — all local in the browser.
站内文件转换中心：图片格式互转、压缩、图片转 PDF、文本 Base64（均在浏览器本地完成）。
上传与目标格式
在本机用 Canvas 重绘并导出。说明：画布 API 的常见输出仅为 PNG／JPEG／WebP； BMP 由本组件将像素手工打包为标准 24 位 BMP。
隐私：图片仅在您的浏览器本地处理，不会上传到服务器。
Overview
Runs entirely in your browser.
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