The document flip function is available in almost all PDF editors. You can download many of them for free. But you don't have to download anything. Just remember that when working with online editors, you will have to upload files to the network, which means that the modified document may become public domain. Therefore, it is preferable to use the editors installed on the computer for personal documents.
Open the PDF file in the free Adobe Acrobar Reader. You turn. Go to the print dialog. Choose Microsoft Print to PDF as a printer (installed with Windows 10). This allows the document to be saved to a file instead of being sent to a real printer. Next, it is advisable to manually select the page orientation (landscape or portrait) corresponding to the rotated document. When autodetect does not always work. Then you print to a file. Done.