你最后一句说得对，那些文档就是一张raster图片，涂黑后再扫描存为PDF文件，不是你想的那样vector data

来源: 水中捞月于 2025-12-24 12:58:52 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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