onix device that save PDF's note into the file

Hi guys,

someone may give me an andvice about an onix boox device that:

1) Save pdf's note and highlights into the file so if i need i can read the file into my mac with notes and highlights
2) Possibility to read pdf in landscape mode (so, for me also a small device like 6' is good)

Better if the device is not very expansive: i'm wainting max carta 2 so, but meantime, i need a more economic device.