Keyword Analysis & Research: how to merge various pdf files

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
how to merge various pdf files	0.16	0.3	8211	81	30
how	1.52	0.6	5199	24	3
to	0.54	0.7	6054	47	2
merge	1.42	0.4	3158	17	5
various	1.65	0.9	3540	27	7
pdf	0.8	0.8	6716	88	3
files	0.87	0.3	2870	78	5

Keyword	CPC	PCC	Volume	Score
how to merge various pdf files	0.62	0.3	1900	58