[danielheath]

If only there were some other technique to print a large image file onto a page /s

[avdlinde]

Sure, encryption over image data and printing works fine for retrieving it at a later date.

[danielheath]

I was referring to printing the image pixels rather than a serialization of the binary data. A quality printer can do 600dpi in full color - an A4 page can hold a very large image.