My laptop crashed and I replaced it and reinstalled all my software. I have Adobe Acrobat standard 9. I only use it to create pdf files for bandcamp codes that I can then select and paste in an email. Since I reinstalled on my new laptop, I can select text and copy with all my previously created pdfs. However any new pdfs I create I cannot select the text. It must be a setting for pdf creation but I do not see anything obvious. An example pdf is attached (the codes have expired).
Your version of Acrobat is extremely old and not compatible with any current OS version.
I assume you use Windows, because otherwise you won't be able to use it at all. Make sure to install all available updates and run it in Compatibility Mode with an earlier OS (like Windows Vista) for better chances of it working properly.