What is inside a QR code?

Related questions

1. How do I scan documents to PDF?
2. Can a QR code open a PDF?
3. How much information can you put in a QR code?
4. How do you send an email with an attachment?
5. Can QR code contain image?
6. What is the smallest size a QR code can be?

Tags

1. #alphanumeric
2. #scanner
3. #smartphone
4. #scanned
5. #quick
6. #characters
7. #short
8. #33x33
9. #contain
10. #matrix
11. #different
12. #barcode
13. #response
14. #while
15. #built
16. #include
17. #version
18. #using
19. #camera
20. #contains