Print PCB on copper using Altium
So you have got a drill file, in txt format. You can drag this txt and drop into the Altium Designer. You will get the following dialog:



Click OK and your drill file will be loaded like this:



Now, you can select \$ \textbf{File}  \longrightarrow  \textbf{Print}\$, set  Print Scalling to \$ \textbf{User Scale = 1.0}\$. The page orientation can be set under the Printer Setup option.



As a demonstration I have just printed it as a PDF document, here is the output on an A4 sheet:




the board dimensions: 67.6mm x 149.25mm
the A4 sheet dimensions: 210mm x 297mm


According to this: \$ \frac{297mm}{149.25mm} = 1.9899 \$, there must be enough space  along the height of the page for almost two printing.
It can be seen on the picture above that this condition is fulfilled(, if we place the printing at the edge of the sheet).

Consider it as a workaround, there could be much more sophisticated solutions.