5.7 1。
1. Download the installation package of WinRAR software online and install it on the computer.
2. Then find the target PDF file on the computer and click with the right mouse button.
3. Then in the right-click menu, click the shortcut option "Add to Compressed File (A)" of winRAR.
4. Then in the window that appears, set the compression format to "rar" and set other settings according to your personal needs. Click OK.
5. After the above settings are completed, you can convert pdf files into rar files.