Keyword Analysis & Research: how to combine multiple pdf into one document

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
how to combine multiple pdf into one document	0.03	1	4423	76	45
how	0.98	0.3	6486	81	3
to	0.63	0.9	4667	7	2
combine	0.79	0.3	8789	85	7
multiple	1.42	0.4	4563	86	8
pdf	1.3	0.7	6829	11	3
into	0.78	0.9	2406	1	4
one	0.8	0.3	585	11	3
document	1.34	0.2	6420	47	8

Keyword	CPC	PCC	Volume	Score
how to combine multiple pdf into one document	1.33	0.5	4516	2