The cash flow graph and table will display the selected months chosen from the date selector when you pick "Export to PDF". Please note that the cash flow graph and table will always show the full month that you select.
To export, hit the export button (shown below) and choose to export as a pdf.
This will generate a pdf copy that includes both the graph and cash flow table along with an overall summary showing the top line figures of cash in, cash out and net cash movement. For each cell in the table the pdf will show the higher of the budget and actual figure.
The other option is to export to .csv which you can check out here.