For pre-CC versions you can find links at the bottom of this page: Download and Installation Help and if you registered the software, the serial number will be listed in your user account at Adobe.com. If not, you can use the software as a trial for 30 days until you can locate the number.
For CC versions, just log into Adobe.com using the Adobe ID you've been using and download the CC Application again, then the programs.
Thank you for this quick answer! However, I realize that my question wasn´t accurate enough.
I have/had a version of InDesign that is from 2013, and not a CC version. I also now have to buy/subscribe to PhotoShop, since the version I had was old, and really my husband´s. Also the Acrobat I had was not a CC version.
Now I wonder if it would be better to simply just buy/subscribe to new CC versions of all programs? Or if it is worthwhile to reinstall the - a bit older - but already bought products, plus the new PhtoShop?
All the best
Only you can answer the economic and feature-specific questions about what versions you might want.
ok, that´s probably true. Thank you anyway!