Kindly note that the perpetual license provides lifetime access only to the purchased major version, along with free minor updates within that version. However, it does not cover new major upgrades. This is why the software may display a trial version notice and prompt for payment when updating from an older version to PDFelement 11.
Currently, for users who have an old version (5/6/7/8/9/10) perpetual license, we have an exclusive discount for you to upgrade. We highly recommend you go to the upgrade page below and enter your license email to check the discount.
https://pdf.wondershare.com/upgrade-pdfelement11-with-discount.html
After the upgrade, you will have full access to the features of the new version. If you do not need to upgrade at present, you can feel free to go back to use the old version you purchased.