How to convert text file to pdf using command line on the fly

Actually, it is possible, but it might not work as you expect.

You just need to provide the path to the txt file as a parameter to Acrobat.exe and it will launch Acrobat and convert that file to PDF.

However, it will not be saved automatically and the application, with the new (temporary) file in it, will remain open.

Acrobat is not really suited for command-line usage, if that's what you're trying to achieve.

Not possible.