How to scan documents on a LG smartphone or tablet

LG LS7 4G LTE LG LS7 4G LTE
LG G Pad F2 8.0 LG G Pad F2 8.0
LG Signature Edition LG Signature Edition
LG Tribute Dynasty LG Tribute Dynasty
LG Rebel 3 LG Rebel 3
LG K10+ (2018) LG K10+ (2018)
LG V30S ThniQ LG V30S ThniQ
LG V30S+ ThniQ LG V30S+ ThniQ
LG X4 LG X4
LG K9 LG K9
LG K8+ (2018) LG K8+ (2018)
LG Fortune 2 LG Fortune 2
LG K11 LG K11
LG Risio 3 LG Risio 3
LG Premier Pro LTE LG Premier Pro LTE
LG Q7 MT6750S LG Q7 MT6750S
LG Q7+ LG Q7+
LG X2 (2018) LG X2 (2018)
LG X5 (2018) LG X5 (2018)
LG Q Stylus+ LG Q Stylus+