How to scan documents on a smartphone HTC

HTC One Max HTC One Max
HTC Desire 500 HTC Desire 500
HTC One mini HTC One mini
HTC Butterfly S HTC Butterfly S
HTC Desire 600 dual sim HTC Desire 600 dual sim
HTC Desire 400 dual sim HTC Desire 400 dual sim
HTC U11 Eyes HTC U11 Eyes
HTC U12+ HTC U12+
HTC U12 life HTC U12 life
HTC Desire 550 HTC Desire 550
HTC Desire 728G HTC Desire 728G
HTC One M9e HTC One M9e
HTC One E9s HTC One E9s
HTC Desire 728 HTC Desire 728
HTC Desire 626G HTC Desire 626G
HTC Desire 826 HTC Desire 826
HTC Desire 620G HTC Desire 620G
HTC Desire 820G+ HTC Desire 820G+
HTC Desire 820s HTC Desire 820s
HTC Desire 816 Dual HTC Desire 816 Dual