Oxford PDF

使用密码解锁 PDF

使用正确的 PDF 密码创建未加密副本。

免费使用无需账户文件留在你的浏览器中

A PDF and its known password

Choose a protected PDF, then enter its correct opening or permissions password.

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How to unlock a PDF

  1. 选择 PDF

    Choose the protected PDF.

  2. Use its password

    Enter its known PDF password and prepare an unlocked copy.

  3. Review the copy

    Review the copy and download the PDF that opens without a password.

保存之前

  • Use a valid PDF up to 100 MB and 500 pages. The correct password is required; this tool does not recover forgotten passwords.
  • The document object graph and decoded contents are checked after saving. Digitally signed, repaired, XFA, scripted and unsupported files are refused.
  • Passwords are used in browser memory for this operation and are cleared afterwards. Original files stay unchanged.

Questions about unlocking PDFs

Can this recover a password I forgot?

No. Supply the correct opening password or permissions password.

Will my form fields and notes remain?

Supported fields, annotations, page geometry and document content are retained and verified. Files that fail preservation checks are refused.

What if my PDF has no password?

The tool reports that it is already unprotected and can provide a verified copy with the original bytes.