Nevermind, I found the problem.

I noticed that it only happens with hidden text in a table. If you put in
an extra carriage return at the end of the cell, and format the end-of-cell
marker as plain text, that fixes it.

"Lyndon S." wrote:

I have several documents that print correctly with hidden space visible, but
when I hide the hidden text, I get a lot of extra white space, even entire
blank pages - both in Print Layout view, and when printed. The hidden text
is placed in tables, along with normal text. The longer the hidden text, the
more white space it introduces. Does anyone have a solution for this?