水印を追加
PDFにテキストまたは画像の水印を追加します。
またはここにPDFをドロップ
完全ガイド: 水印を追加
Adding a watermark to your PDF documents serves multiple purposes: protecting intellectual property, indicating document status (draft, confidential, approved), branding company materials, or deterring unauthorized distribution. iLoveDoc's Add Watermark tool lets you overlay text or image watermarks across all pages of your PDF with precise control over opacity, rotation, position, size, and color. Text watermarks are commonly used for status indicators like "DRAFT," "CONFIDENTIAL," or "SAMPLE," while image watermarks are ideal for company logos and branding. You can adjust the transparency so the watermark is visible but doesn't interfere with document readability. The watermark is applied consistently across all pages or just selected pages, and it becomes a permanent part of the PDF. All processing is done locally in your browser for complete security.
水印を追加 の使い方
- 1Upload the PDF you want to watermark.
- 2Choose watermark type: text or image. For text, enter your watermark text (e.g., "CONFIDENTIAL").
- 3Adjust watermark properties: opacity, rotation angle, size, color, and position on the page.
- 4Preview the watermark on your document to verify placement and visibility.
- 5Click "Add Watermark" to apply it across your document and download the watermarked PDF.
水印を追加 の使用例
Document Status
Mark documents as "DRAFT," "CONFIDENTIAL," or "APPROVED" to clearly indicate their status and handling requirements.
Brand Protection
Add company logos to proposals, reports, and marketing materials to reinforce brand identity and prevent unauthorized reuse.
Copyright Protection
Watermark photographs, designs, and creative works shared as PDFs to deter unauthorized copying and distribution.
iLoveDocで 水印を追加 を使用する理由
ファイルは完全にブラウザ内で処理されます。当社のサーバーにアップロードされることはなく、完全な機密性とデータ保護が保証されます。
水印を追加 は完全に無料で使用でき、登録は不要で、ファイルサイズの制限もありません。必要なだけ何度でも使用できます。
ローカルブラウザテクノロジーにより、処理は瞬時に行われます。待ち時間、キュー、サーバーの遅延はありません。