Can't make environment labels go away

[erwindenboer]

Hello,

In my LaTeX code I've used the geometry package.

I would want to make all these LaTeX code go away using opendetex.
Unfortunately when I try to use the following command on my Raspberry Pi: detex pva.tex I still see the environment labels.

I've read the help page by using the following command detex -h

There I saw that I need to make an environment list of LaTeX commands.
So I used the following command: detex -e a4paper pva.tex.
Which didn't help:

I've already tried multiple commands which all failed:
detex -e a4paper,left=30mm,right=30,top=33mm,bottom=20mm pva.tex
detex -e "a4paper" pva.tex
detex -e <a4paper> pva.tex
detex -e 'a4paper' pva.tex

I hope you can tell me how to solve this, because I'm out of tricks.

Erwin