-.TH PNG 5 "July 10, 2012"
+.TH PNG 5 "January 15, 2016"
.SH NAME
png \- Portable Network Graphics (PNG) format
.SH DESCRIPTION
platforms.
.SH "SEE ALSO"
-.IR libpng(3) ", " zlib(3) ", " deflate(5) ", and " zlib(5)
+.BR "libpng"(3), " libpngpf"(3), " zlib"(3), " deflate"(5), " " and " zlib"(5)
.LP
PNG specification (second edition), November 2003:
.IP
PNG 1.2 specification, July 1999:
.IP
.br
-http://www.libpng.org/pub/png
+http://png-mng.sourceforge.net/pub/png/spec/1.2/
.LP
PNG 1.0 specification, October 1996:
.IP
RFC 2083
.IP
.br
-ftp://ftp.rfc-editor.org:/in-notes/rfc2083.txt
+ftp://ds.internic.net/rfc/rfc2083.txt
.br
or (as a W3C Recommendation) at
.br
-http://www.w3.org/TR/REC-png.html
+http://www.w3.org/TR/REC-png-961001
.SH AUTHORS
This man page: Glenn Randers-Pehrson
.LP