How to scan documents on a LG smartphone or tablet

LG Q7+ MT6750S LG Q7+ MT6750S
LG Aristo 2 Plus LG Aristo 2 Plus
LG Stylo 4 LG Stylo 4
LG Phoenix Plus LG Phoenix Plus
LG X Power 3 LG X Power 3
LG K11 Alpha LG K11 Alpha
LG Signature Edition 2018 LG Signature Edition 2018
LG Harmony 2 LG Harmony 2
LG Q Stylo+ LG Q Stylo+
LG Q8 (2018) LG Q8 (2018)
LG G7+ ThinQ LG G7+ ThinQ
LG Stylo 4 Plus LG Stylo 4 Plus
LG Rebel 4 LG Rebel 4
LG Phoenix 4 LG Phoenix 4
LG it V36 LG it V36
LG Xpression Plus LG Xpression Plus
LG X5 Android One LG X5 Android One
LG Aristo 3 LG Aristo 3
LG Q9 One LG Q9 One
LG K12+ LG K12+