pdf to tab conversion almost certainly describes the recovery of some data from PDF documents, but to which .tab file exactly that would be is incredibly hard to say, given the sheer number of various tab file types.
A lot of software nowadays can actually import PDF documents, but typically only files that were either previously exported by the very same software or contain data that can be read by the software.
In other situations you have to rely on one of the dedicated PDF editor, of course including the original Adobe Acrobat.
Updated: October 31, 2023