Add Watermark to PDF
利用 SSL 保護技術享受超快速的處理體驗。 點擊此處開始。
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Why Add Watermarks to PDFs?
Watermarks are an essential tool for protecting document ownership, clearly marking draft versions to prevent premature distribution, indicating confidentiality levels on sensitive files, and deterring unauthorized copying or redistribution. They provide a visible layer of document status information while keeping the underlying content fully readable.
Common professional uses include stamping documents as DRAFT before they receive final approval from stakeholders, adding CONFIDENTIAL to sensitive internal reports and financial statements, branding proposal documents with your company name for professional presentation, and adding SAMPLE labels to preview copies of contracts, eBooks, or marketing materials.
How to Add a Watermark
- 1
Upload the PDF file you want to watermark.
- 2
The default watermark text 'WATERMARK' will be applied.
- 3
Click Convert to add the watermark to all pages.
- 4
Download your watermarked PDF document.
Key Features
- Custom watermark text
- Adjustable opacity and font size
- Diagonal text placement
- Applied to every page
- Free and secure processing
Frequently Asked Questions
轉換後我可以編輯檔案嗎? ▼
從 WATERMARK-PDF 轉換為 WATERMARK-PDF 後,根據目標格式,您可以下載結果並進行修改。
將 WATERMARK-PDF 轉換為 WATERMARK-PDF 安全嗎? ▼
是的,您的所有檔案都受到強大的 256 位元 SSL 加密保護。轉換後,我們會自動從伺服器中刪除您的檔案。
這個工具可以在手機上使用嗎? ▼
當然。我們的雲端轉換器在 iOS、Android 裝置和平板電腦上運作流暢,無需下載任何應用程式。
會保留原始檔案大小嗎? ▼
為了在不顯著損失品質的情況下節省儲存空間,我們在轉換為 WATERMARK-PDF 時使用最佳的壓縮技術。
有隱藏費用或浮水印嗎? ▼
沒有。我們的平台 100% 免費使用,我們不會在您的文件或影像中插入任何浮水印或廣告。