Keyword Analysis & Research: what is the best app to open pdf files

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
what is the best app to open pdf files	1.02	0.2	6772	28	38
what	1.55	0.7	4950	44	4
is	1.45	0.3	4276	58	2
the	1.63	0.7	2289	8	3
best	0.86	0.2	2433	73	4
app	0.05	0.8	96	10	3
to	0.75	0.3	4214	90	2
open	1.65	0.7	9052	27	4
pdf	1.51	0.2	3389	9	3
files	0.26	0.1	5888	58	5

Keyword	CPC	PCC	Volume	Score
what is the best app to open pdf files	1.14	0.5	9341	88