This program will export to Word and preserve the indents:
http://www.convert-in.com/pdf2word.htm
However, it uses line indenting rather than a tab. Anyone know how to use Word to search for lines with a specific indenting? Then I need to insert some identifiable mark right before each of those lines, then get rid of all the paragraph marks, then replace the special mark with a paragraph mark. I can write a macro to do all that, but only if I can identify the indented lines to start with.
I'm giving ABBYY a try next, though it's pretty expensive if I need to keep using it.
Edit: ABBYY does the job if you pick "Text Flow" rather than "Original Layout." Apparently it's smart enough to figure out that an indent should be treated as a new paragraph, and ignores the other linefeeds. Great. Now I have to decide if that's worth US$99, or if I want to just settle for writing a linefeed removal program.