塗黑 PDF
永久隱藏資訊
塗黑 PDF 的敏感區域。受影響的頁面會被平面化為影像：隱藏的內容會被真正移除，而不僅僅是遮蓋。
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Restoring your session…
How to redact a PDF
- 1Import the PDF to redact.
- 2Browse the pages and drag to hide each sensitive area.
- 3Click “Redact”: the masked pages are flattened and downloaded.
Frequently asked questions
Is the hidden text really removed?
Yes. Pages with a redaction are turned into an image with the black zones baked in; the text and content underneath no longer exist in the final file.
Are my files sent to a server?
No, the entire redaction happens in your browser; no file is uploaded.
Do unmasked pages lose quality?
No. Only pages with at least one masked zone are flattened to an image; the others are kept as-is, selectable text included.