PaperBack
Back up your precious files on the ordinary paper.
...Remember, that "PaperBack" can accumulate good data blocks and any scanned copy of data page is useful. Working with bitmaps better, than directly with scanner, scan all pages before.
You can use "PaperBack" to print your 100 Kb encrypted *.iK file to A4 paper and get strong encrypted digital letter
https://sourceforge.net/projects/inkey/
http://ollydbg.de/Paperbak