PDF · WATERMARK

PDF watermark

Stamp text watermarks across a PDF with position, opacity, and style controls.

檔案只在本機／瀏覽器處理，不會上傳到伺服器。

選擇檔案

把 PDF 拖進來，或點這裡選檔

一次一個檔案 · 也可拖入資料夾後取其中 PDF · 僅接受 PDF

快捷鍵：Ctrl+Enter 套用 · Esc 清除檔案

CJK text supported?

Yes—complex glyphs are stamped via canvas when needed.

Uploaded?

Files are processed locally in your browser and are not uploaded.

Vs remove-watermark?

This adds a stamp; remove-watermark is best-effort and never guaranteed.