Introduction to encryption methods for presentations

How to encrypt a presentation

In order to solve the security problem of the presentation, you can consider encrypting it. This is a new feature in PPT2002 version. Encryption can effectively protect the security of document content and prevent unauthorized persons from viewing or tampering. The specific operation method is to select "File" - "Save As" in the menu bar of PPT2002, then check the "Encrypt Document" option in the pop-up dialog box, and set a strong password. so,

Start PPT2002, open the corresponding presentation, and then choose one of the following two methods to encrypt it:

1. Execute the "Tools → Options" command, open the "Options" dialog box, switch to the "Save" tab, set the password for the corresponding option (see Figure 12), confirm to return, and then save the document. That’s it.

2. Execute the "File → Save As" command to open the "Save As" dialog box. Press the "Tools" button on the upper right side of the dialog box. In the drop-down menu that pops up, select the "Security Options" option and open the " In the Security Options dialog box (Figure 13), set the password for the corresponding option, click OK to return, and then save it with a name.

Tips: ① If the "open permission password" is set, when the user wants to open the corresponding presentation in the future, he must enter the correct password in the dialog box as shown in Figure 14, otherwise it cannot be opened.

If the "modify permission password" is set, when the user opens the corresponding presentation in the future, if the user enters the correct password in the dialog box as shown in Figure 15, not only can the document be opened, but also the document can be modified. If you do not enter the correct password, you can press the "Read Only" button to open the document for playback, but you cannot modify it.

② "Open permission password" and "Modify permission password" can be set the same or different.

③Although we say that the presentations produced by PPT2002 and PPT2000 are compatible with each other, the encrypted PPT2002 presentations are displayed as garbled characters when opened with PPT2000.

How to encrypt office ppt2007

To encrypt files with a password in Word, Excel or PowerPoint, you can first click the Office button in the upper left corner of the Office program window. Select "Prepare > Encrypt Document". Enter a secure password in the password field. It must be at least eight characters long and can use a mix of uppercase and lowercase letters, numbers, and symbols. Enter the same password again when prompted.

You can store files in the format of Office 2007 files (.docx, .xlsx or .pptx), or you can store files in the format of Office 97?D2003 (.doc, .xls or .ppt). You will see a dialog box that advises you that XML format is the most secure, and then asks you if you want to convert to XML file format to enhance the security of the document. Now, when you or someone else opens the file, a dialog box will pop up prompting you for a password.

In addition to setting a password for documents to encrypt them, Office 2007 also allows you to set a file sharing password. The encryption mentioned before refers to the need for a password when opening a document, while the file sharing password requires a password only when modified.

To set a modified password for a file, you need to use the "Tools" in the "Save As" dialog box, which can also be used as another method to set an opening password. In the document, you only need to click the Office button and select "Save As". Then, in the "Save As" dialog box, enter the name of the file, click the down arrow next to "Tools", and then select "General Options" . In the General Options dialog box, you can enter the opening password or change the password.

The above is the detailed content of Introduction to encryption methods for presentations. For more information, please follow other related articles on the PHP Chinese website!