Can I install Designer Pro+ alongside Designer Pro X?

Yes, if you already have Designer Pro X installed, you can install Designer Pro+ and run them side by side.

All files are compatible between each version, however please note that if Designer Pro+ is on a later version that Designer Pro X, you may receive a warning about the file being saved in a later version and some newer features may not work:

The same applies if you use Web Designer or Photo and Graphic Designer that is on a different version.