Apps 
CamScanner is the best scanner app that will turn your phone into a PDF scanner. Convert images to pdf with just one click. it for FREE!
Characteristics:
* Quickly scan the document
* Optimize scan quality
* Extract text from image
* Share PDF / JPEG files
* AirPrint and fax documents
* Advanced document editing
* Rapid search
ed Android
{Varies with device}
ed Android Version:-
Jelly Bean(4.1–4.3.1)- KitKat (4.4–4.4.4)- Lollipop (5.0–5.0.2) – Marshmallow (6.0 – 6.0.1) – Nougat (7.0 – 7.1.1) – Oreo (8.0-8.1) – Pie (9.0)
