Can I unlock any PDF?

You need to know the original password of the PDF to unlock. This tool cannot crack or bypass password protection.

Will unlocking change the document content?

No. Unlocking only removes password protection; document content, format, and layout remain completely unchanged.

Can the unlocked PDF be encrypted again?

Yes. You can use the 'Protect PDF' tool to set a new password for the unlocked document.

Is my password secure?

Absolutely secure. The password is only used in the browser and is never sent to any server.

What types of password protection are supported?

Standard PDF open passwords (user passwords) are supported. Some advanced permission passwords may require additional processing.

PDFロック解除

Remove password protection from PDF documents. If you have the password but want a password-free copy of the document, this tool can help you create an unlocked version. Note that you need to know the original password to unlock.

ファイルはローカルで処理され、サーバーにアップロードされることはありません。

使用例

Remove Old Passwords

Remove password protection that is no longer needed for daily use.

Create Backup Copies

Create password-free backup copies to prevent being locked out if you forget the password.

Internal Sharing

Share unlocked documents internally to avoid the hassle of frequent password entry.

Archive Preparation

Create password-free versions for long-term archiving to ensure future accessibility.

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