The package offers a solution to the problem that when you link to a float using hyperref, the link anchors to below the float's caption, rather than the beginning of the float.
Hypcap defines a separate \capstart command, which you put where you want links to end; you should have a \capstart command for each \caption command. Package options can be used to auto-insert a \capstart at the start of a float environment.
The author is Heiko Oberdiek. The package is Copyright © 1999-2001,2006-2008,2011 Heiko Oberdiek.
License: lppl1.3 Version: 1.12, dated: 2016-05-16 Catalogued: 2016-05-18