Hi, that’s very easy. According to my own experience, you just need to search for the keywords: “rotate PDF page free” on Google, then you can find many kinds of free online services which allow you to rotate your PDF pages. Simply follow the 3 steps to start to do it:
Step 1: Upload your PDF pages for rotating.
Step 2: Choose to rotate 90° clockwise, 90° counter clockwise, or 180° clockwise. Based on your requirements, you can select to rotate all, odd or even pages.
Step 3: Wait for the process until it is done. Click on Download button to get your file or upload to the cloud services like Google Drive or Dropbox.
Tips: There are some limitations for using the free online PDF tools. For example, you are allowed to upload up to 100MB or 50MB. The watermark might be included in the output PDF pages.