Which readers support encrypted PDFs?

Standard PDF password security works in Acrobat, Preview, Chrome’s viewer, and most common readers.

Do I need the original password to remove protection?

Yes. Enter the same password used to encrypt; the tool decrypts locally and exports an unlocked PDF.

User passwords gate opening; owner passwords can restrict print/copy. This tool uses a single password for open protection.

Home ToolboxPDF Encrypt / Decrypt

Password-protect PDFs or remove protection locally with a single password. No uploads.

AES-256 encrypt/decrypt PDFs locally with a single password. Files never leave your browser.

1Select a PDF file.
2Encrypt: set a password and download. Opening the PDF requires that password.
3Decrypt: enter the same password used when encrypting, then download the unlocked PDF.

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Which readers support encrypted PDFs?: Standard PDF password security works in Acrobat, Preview, Chrome’s viewer, and most common readers.
Do I need the original password to remove protection?: Yes. Enter the same password used to encrypt; the tool decrypts locally and exports an unlocked PDF.
User vs owner password?: User passwords gate opening; owner passwords can restrict print/copy. This tool uses a single password for open protection.