To safeguard confidential data in WPS PDF documents, you must follow a series of security procedures

Users can leverage WPS Office’s built-in security suite to apply industry-standard encryption to PDF files

Start by launching the target PDF document using WPS PDF viewer

From the main interface, click on the Tools tab found in the ribbon menu

From the dropdown options, select Protect or Security, depending on your version of WPS Office

You’ll gain access to options for configuring document access, editing locks, and print permissions

Enable full encryption by choosing the option to require a password for document access

Your password must contain at least one uppercase letter, one lowercase letter, a digit, and a special symbol

Each time the document is accessed, the user must authenticate with this password to unlock its contents

After entering the password, confirm it by retyping it in the verification field

Look for an encryption strength dropdown offering 128-bit, 192-bit, or 256-bit AES options

The most secure choice is always the maximum bit strength your version supports

Use the permissions password feature to define usage rights beyond simple access control

Disable functions such as copy-paste, form filling, commenting, and document modification

This is especially useful when distributing documents that should remain read-only

Submit your configuration by selecting Apply or Confirm to lock the document

The application will regenerate the file with the applied encryption keys and restrictions

Before locking your document, make sure you have an unencrypted backup stored safely

No encryption technology can compensate for a password like "123456" or "password"

Steer clear of predictable patterns like "admin123" or "company2024"

Let a trusted password vault handle the creation and storage of your PDF encryption keys

Regularly update wps office下载 Office to benefit from the latest cryptographic enhancements and vulnerability fixes

Finally, remember that encryption only protects the file itself; if the password is shared or leaked, the security is compromised

Send passwords separately via encrypted messaging, phone call, or secure portal

These procedures form a robust framework for protecting sensitive data in WPS PDF format