How to remove shadow

[Gringo]

I am new to RP and so far I already picked-up some tips and tricks.
My compliments to everyone.

But I would like to know how to remove the shadow on this picture with keeping the same background. Or if someone can direct me to a tutorial.
I've been searching thru the forum but couldn't find anything yet.

I know it's better to use no flash, but in this case I had to. Mainly because I didn't have time to make a few test shots, the bar was dark and the ceiling was too high to put my flash up.

Thank you in advance for your help.

Gringo

Just noticed that I used the wrong group and don't know how to delete it, sorry.

Moved it to appropriate forum for you. Gary

[Gary Richardson]

Did a quick job with your picture, haven't removed the shadow for the stool, this is just meant as an illustration of one way of doing it.

Duplicated image. Extracted girl from picture.
New layer between the original and extracted girl, and cloned background into shadow areas.

With a bit more time taken than I did, you should be able to get a reasonable result.

[Gringo]

Gary, a reasonable result? Wow, this is outstanding. I never got even close to this.
Thank you very much for your solution, I'm gonna work with it.

Gringo