I am not sure how to do it.
For the first letter, the E, I remove the front face, and my idea is to remove all front face of all letters, and then move the text into the main front face. The idea would be to keep independant, in the way I could recenter it.
Thanks
Presumably this is for 3D printing? If you want to make the letters embossed in the form You can first unglue the text and then move it back into the face. Explode the text so you have loose geometry with the face. Then select it all, use Intersect Faces and erase the waste. That will leave you with something like this.