how to extend trial in adobe photoshop 2020?

The trial is not to do work, or finish tasks! If you want to do that, simply pay. The trial is to evaluate.

In addition to what others have said, while the Photography plan (Annual plan, $9.99 per month) is the least expensive, you might consider a Monthly plan instead of an Annual plan that you can cancel at the end of the month if you need PS for a short time or are uncertain.

https://www.adobe.com/creativecloud/plans.html

~ Jane

If you want to continue using the applications then pay for a subscription. The trial is really just a chance to check you are ordering the correct application and it will work on your system.

Dave

Install a trial on an other machine

You can take out a subscription and cancel it within a couple of weeks,  for a refund, I believe.

I hope you appreciate that what you are asking for would be very problematic from a legal standpoint … 

Are you still making up your mind about whether the CC license meets your needs? 

What are your image editing needs? 

Have you considered using software other than Photoshop? Gimp for example is freeware. 

Hi

You can't extend the trial.