How to continue using Adobe Photoshop CS4 with Apple OS upgrades beyond 10.14.6

[Melynnique25447013cxjv]

I have resisted up updating my IMac beyond 10.14.6, because I did't want to lose my Photoshop CS4, which is supposedly not compatible with the upgrade.  I cannot pay a monthly fee to continue using Photoshop either.  I'm happy with the limited tools CS4 gives me.  Is there anything I can do

to go on, without having to upgrade my Apple operating system on my IMac?  Thanks for any suggestions.

[Test Screen Name]

No. Apple blocked old apps completely in. Catalina. If you want to keep running old apps, you need to set up a "museum" computer with old system etc.Tto stay safe, keep that off the Internet. Beware; Adobe say the activation server is closed down and CS4 can never be reinstalled. You are in borrowed time. 

[Melynnique25447013cxjv]

Thank you, I guess, for the scary warning that I am on borrowed time with my old system.

If I am happy with the old Adobe CS4, do you have any other suggestions of any other program I can use that
will enable texts to be printed on top of the photos I have worked on and transformed?

Thank you,
Melynnique