'Export PDF' states that i can convert UNLIMITED PDFs to DOCX, yet it is not true

While the 'Export PDF' cloud option says i can convert UNIMITED PDFs to DOCX/XLSX files, that is not the case.

After 100-ish documents i get a message that i've reached my 'DAILY LIMIT'

So how exactly is this 'UNLIMITED'? 

I must specify some documents contain images and i do expect OCR being performed on them.

If there is a limit on the OCR part, why isn't it mentioned anywhere?

Regards,

Adrian L.