新增浮水印

在您的 PDF 頁面上壓印文字或圖片。

點選以選擇檔案 或將檔案拖曳至此處

PDF 檔案

您的檔案絕不會離開您的裝置。

使用方式

1

Upload File

點選或拖曳檔案至此處以開始

2

Process

點選處理按鈕以開始

3

Download

立即儲存處理後的檔案

相關 PDF 工具

Merge PDF

Free online merge PDF tool

Compress PDF

Free online compress PDF tool

Split PDF

Free online split PDF tool

Edit PDF

Free online edit PDF tool

Rotate PDF

Free online rotate PDF tool

常見問題

Is add watermark really free?

Yes! PDFBay is 100% free with no hidden fees, no signup required, and unlimited file processing.

Are my files private and secure?

Absolutely! All processing happens in your browser. Your files never leave your device, ensuring complete privacy.

Is there a file size limit?

No! Process files of any size, as many times as you want, completely free.