為 PDF 加上浮水印
在每一頁蓋上像 CONFIDENTIAL 或 DRAFT 這類文字。
運作方式
上傳您的 PDF，輸入浮水印文字，選擇位置（或讓它鋪滿整頁），設定顯示程度，然後下載——每一頁都會套用相同的浮水印，全程在您的瀏覽器中完成。
我可以控制浮水印的顯示程度嗎？
可以——可選擇淡、中或強的透明度，讓浮水印清晰可見，但不影響頁面的可讀性。
加上浮水印時會上傳我的 PDF 嗎？
不會——這完全在您的瀏覽器中使用 WebAssembly 執行。您的檔案絕不會離開您的裝置，也不會經過任何伺服器。
Can I add a diagonal watermark?
Yes — the rotation option lets you angle the text, including the classic diagonal look used for DRAFT or CONFIDENTIAL stamps.
Will the watermark print if I print the PDF?
Yes — it's stamped directly into the page content, so it appears on screen and in any print or export.
Can I remove a watermark this tool added later?
Not automatically — once downloaded, the watermark is part of the page content. Keep a copy of your original file if you might need an unwatermarked version later.
Can I use a logo or image as the watermark instead of text?
No — this tool only stamps text. If you need a logo or picture on every page instead, that's not something it does.
Can I change the watermark's color or font?
No — every watermark comes out in the same bold gray font. You can control its size, opacity, rotation, and position, but not the color or typeface.
Can I watermark only some pages, not the whole document?
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