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 PDF に透かしを追加する
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
Can someone easily remove the watermark?▼
透かしは PDF のページ コンテンツに埋め込まれているため、不用意なコピーは阻止されますが、高度な編集ソフトウェアを使用する決心した人物に対して完全に改ざんを防止できる透かしはありません。
透かしの外観をカスタマイズできますか?▼
Yes, you control the text, font size, color, rotation angle, and opacity, so you can make it as subtle or as bold as you need.
透かしはすべてのページに自動的に適用されますか?▼
Yes, once you apply it, the same watermark is stamped consistently across every page of the document in one pass.
What should I type as watermark text — my company name or "CONFIDENTIAL"?▼
Either works well. Use "CONFIDENTIAL" or "DRAFT" to flag a document's status, or your company name/logo text to brand shared materials like proposals and reports.
透かしは既存のテキストを隠してしまいますか?▼
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.