Защитить PDF Document
Encrypt your PDF with a password to restrict access. All processing is completed locally in your browser memory.
Выбрать файл PDF
or drag and drop PDF here
Encrypt your PDF with a password to restrict access. All processing is completed locally in your browser memory.
or drag and drop PDF here
Standard cloud lockers require uploading unencrypted PDF archives to their remote environments to append key locks. This poses security and compliance risks. Document Alter executes cryptographic operations directly inside your browser's memory context.
The tool processes your document byte stream locally, combining your custom user password with encryption hashes using @pdfsmaller/pdf-encrypt-lite. The security parameters are compiled directly into the PDF's header catalog metadata dictionary, ensuring robust lock integrity.
Drag and drop the target PDF you want to protect into the secure dropzone.
Enter your chosen password in the input field within the settings sidebar.
Click the 'Encrypt PDF' button to run encryption routines locally and save your password-locked file.
DocumentAlter шифрует документы прямо в браузере, устанавливая пароль защиты без отправки в сеть.
Да. Шифрование происходит в памяти браузера, поэтому пароль никуда не передается.
Применяется надежное отраслевое шифрование, блокирующее несанкционированный доступ.