29-12-2012: A lot of people often ask me to make a specific LEGO minifig for my papercraft LEGO minifig series, but unfortunately, I just don’t have the time for that… :o(
Balazs from Hungary however, has re-painted the parts from one of my papercraft LEGO Forestman into a Ninjago Lloyd ZX minifig himself! ;o)
You can see he already did a great job on re-painting all the parts of the body, like the torso, the head, and even the legs!
Balazs hasn’t made the ninja mask and new shoulder piece yet, but he already has plans to modify one of the helmets from my papercraft LEGO astronauts into the ninja mask! ;o)
Balazs sent me the files that he re-painted, so if you want to re-create his papercraft LEGO Ninjago Lloyd ZX so far, you can download the parts to do so here:
Thank you for building (and re-painting ;o) a Ninjatoes’ papercraft model!
Ninjatoes' papercraft webpage 
What app did he use to repaint
I am not sure which specific app Balazs used, but the templates are really just images, so you can edit them with any image editing software, like GIMP or Photoshop or even MS Paint. ;o)
Some image software like Photoshop can open PDF files directly, but you can also convert the PDF files to separate image files beforehand, with a free online tool like https://www.zamzar.com/convert/pdf-to-bmp/ as long as you make sure to keep all the separate sheets the same scale of course.