Add Watermark
Stamp text over your PDF with custom typography, color, and transparency.
Select PDF files
or drag and drop files here
Got a password-protected PDF? Unlock it here first
How to Add Watermark to PDF
1
Upload your document
Select the PDF you want to protect or brand.
2
Customize your watermark
Type your text (like "CONFIDENTIAL" or your company name). Adjust the opacity, size, color, and rotation.
3
Stamp and download
Apply the watermark, and our tool will permanently stamp it across every page of your document.
Frequently Asked Questions
有人可以轻松去除水印吗？▼
The watermark is embedded into the PDF's page content, so casual copying is deterred, but no watermark is fully tamper-proof against someone determined and using advanced editing software.
Can I customize the watermark's appearance?▼
是的，您可以控制文本、字体大小、颜色、旋转角度和不透明度，因此您可以根据需要将其设置为微妙或粗体。
Does the watermark get applied to every page automatically?▼
Yes, once you apply it, the same watermark is stamped consistently across every page of the document in one pass.
我应该输入什么作为水印文本 - 我的公司名称还是“机密”？▼
两者都效果很好。使用“机密”或“草稿”来标记文档的状态，或使用您的公司名称/徽标文本来标记提案和报告等共享材料。
水印会覆盖我现有的文本吗？▼
Not if you lower the opacity — a low-opacity watermark sits faintly behind your content so the original text stays fully readable while still marking the page.