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PDFセキュリティ

PDFファイルの暗号化、復号化、保護

Use the secure PDF hub when the job involves permissions, privacy, access control, or hiding sensitive information before sharing a document.

Best for

  • Encrypting PDFs or changing permissions before distribution.
  • Removing metadata, sanitizing files, or checking digital signatures.
  • Redacting or hiding sensitive information in client-side workflows.

How to choose

  • Use Encrypt PDF when access to the file should require a password.
  • Use Find and Redact when visible sensitive content should not be disclosed.
  • Use Remove Metadata or Sanitize PDF when hidden document properties need cleanup.

Quality checks

  • Open protected outputs and confirm the expected password or permission behavior.
  • Try copying or searching redacted areas when the document is sensitive.
  • Check document properties after metadata cleanup.

Privacy notes

  • Security tools should only be used on documents you own or are authorized to modify.
  • Encryption, redaction, and metadata cleanup solve different problems and may need to be combined.

PDF暗号化

PDFファイルをパスワード保護。暗号化を追加し、権限を設定。

PDFセキュリティ次へ

Find and Redact

Search and redact text across all pages of a PDF. Batch redact sensitive information like account numbers, names, and more.

PDFセキュリティ次へ

PDF復号化

PDFファイルからパスワードを削除。パスワード保護されたドキュメントをロック解除。

PDFセキュリティ次へ

メタデータ削除

PDFファイルからメタデータを削除。作成者、日付、ドキュメントプロパティを削除。

PDFセキュリティ次へ