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Private by design

Unlock a PDF you are authorised to access.

Unlock a PDF online when you know the password and are authorised to use it—while keeping the supported document structure intact.

Authorised unlockRemove a password you already know

Create a local unlocked copy without flattening the document.

Known password onlyStructure preservedOriginal untouched

Remove a password you already know

Create a PDF that opens without repeated prompts

Unlock PDF is for documents you are authorised to access and whose password you know. It is useful when a statement, report, or archived document asks for the same password every time you open it or needs to enter a workflow that cannot handle protected files.

The tool supports AES-256 and older RC4-protected PDFs. Decryption takes place in the browser, preserving the original text, forms, and page quality rather than rebuilding pages as screenshots.

Remove protection from your copy

  1. 01

    Choose the protected PDF

    Select a file you own or have permission to unlock.

  2. 02

    Enter its current password

    The password is used locally to decrypt the document. It is not submitted to a server.

  3. 03

    Download the unlocked PDF

    A new unprotected copy is created while the original protected file remains unchanged.

Practical guide

Before you download, know what makes the result useful

Unlocking is for authorised, known-password work

Unlock PDF is useful when you own a protected document, know its current password, and need a copy that can move through a system that does not accept encrypted files. Common examples include uploading an account statement to a portal, adding a known document to a workflow, or saving an archive that no longer needs to ask for the same password every time.

It is not a password recovery or password-breaking service. The current password is required, and the action should be limited to files you are authorised to modify. This distinction keeps the feature useful for normal document work while respecting privacy, ownership, and the security choices made by the file creator.

Check where the unlocked copy will live

The unlocked PDF preserves the supported document structure, text, forms, links, and page quality. That makes it practical for legitimate workflows, but it also means the resulting file should be stored and shared carefully. Do not leave an unlocked bank statement or personal record in a shared folder simply because the password prompt is gone.

Keep the original protected PDF as an archive, and give the unlocked copy a purpose-specific name. If you need to share it again, consider whether it should be protected with a new password or sent through a secure channel. For a page-level edit before sharing, remove or extract pages first, then unlock or protect only the final copy.

Close the loop after the task

Once the upload, print, or approved workflow is complete, decide whether the unlocked copy still needs to exist. Removing an unneeded copy from a shared workspace is often safer than accumulating sensitive documents that anyone with folder access can open.

When the document will be reused, keep a clear distinction between the original protected archive and the purpose-specific unlocked version. That habit prevents accidental sharing of the wrong file and makes future document updates far easier to manage.

Questions people actually ask

Unlock PDF FAQ

Can this tool find a forgotten PDF password?+

No. You must provide the correct current password. It does not crack, guess, or recover passwords.

Which protected PDFs are supported?+

The local decryptor supports AES-256 and RC4 encryption. Some AES-128 PDFs may not be supported yet.

Will unlocking flatten the PDF?+

No. For supported encryption types, the original text and document structure are preserved.

Is my password uploaded anywhere?+

No. Decryption runs in your browser and the password is not sent to KASA.

Do I need the current password to unlock a PDF?+

Yes. The correct current password is required to create an authorised unlocked copy.

Can I unlock a PDF I received by email?+

Yes, if you have permission to modify it and know the password supplied by its owner or sender.

Does Unlock PDF change my original protected file?+

No. It creates a separate copy that opens without the existing password; the protected source stays intact.

Can I protect the file again after unlocking it?+

Yes. Use Protect PDF on the edited or unlocked copy and set a password appropriate to its next destination.

Why might an authorised PDF fail to unlock?+

The password may be incorrect, the document may use an unsupported encryption method, or the file may be damaged. Confirm the password in a normal PDF reader first.

When should I keep the original protected copy?+

Keep it whenever it is the official archive or contains sensitive information. Treat the unlocked version as a purpose-specific working copy.

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