Hi, I'm Booboo! These little tools are things the Genmoor team built for fun and shares for free — help yourself, you're very welcome.嗨，我是 咘咘～ 这些小工具是简墨团队做着玩、顺手免费分享给大家的，随便用，不客气。

Cupboo 咘咘 · Watermark图纸水印

This page batch-adds watermarks to drawings, IDs and certification files — both visible watermarks and invisible ones that survive compression, so any leak can be traced back to its source. The sidebar has plenty of other free tools too: PDF compression & watermarking, leak forensics, hashing, QR codes and more.这一页是给图纸、证件、认证文件批量加水印用的：既能加看得见的明水印，也能嵌入压缩后依然存活的隐形水印，万一外泄了还能追根溯源。侧边栏还有 PDF 压缩 / 水印、溯源取证、哈希、二维码等一堆趁手小工具，都免费。