ファイル・メディア
PDF透かし追加ツール
Stamp a text watermark on every page.
Drop a PDF or click to browse
編集者注
Understanding · A stamp on every page.
この詳細な解説章は現在、英語版のみで提供されています。上の変換ツールはあなたの言語で動作しますが、長文の解説記事はまだ翻訳されていません。
よくある質問
Quick answers.
›Is my document uploaded to a server?
No. The watermarking process happens entirely within your browser using JavaScript. Your original file and the watermarked version never leave your computer.
›Can I customise the appearance of the watermark?
Yes. You can modify the text content, font size, rotation angle, and opacity levels to ensure the watermark is visible without obscuring the underlying content.
›Will the PDF quality decrease?
No. This tool adds a vector or text layer on top of your existing pages rather than re-encoding the entire document as an image, preserving the original sharpness.
›Does this work on password-protected PDFs?
No. You must remove the owner password or encryption from the PDF before you can apply a watermark to the document layers.
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