ALPNG.SOURCEFORGE.NET has 5 keywords

Third position — 2 keywords

Keywords Analytic

the 3th position for alpng.sourceforge.net

#	Keyword	Results	Change	Check Date
3	gstraem	81 300	0	2014-04-11
3	fast png library	10 100 000	0	2014-11-12

positions above than 3th alpng.sourceforge.net

#	Keyword	Results	Change	Check Date
4	allegro in c++	253 000	0	2012-07-03
31	bmp to png linux	535 000	0	2014-03-07
43	what software to use to make a png file	521 000 000	0	2013-11-02