If you enjoy using AsciiDocLive to build your exam. Just use it, next download your exam as a html. Upload the resulting html file on this form.
Next, you can ask to print 2 pdf using Ctrl + P or Cmd +P.
In your asciidoc, you can directly include svg like the following to create your box for the answer. The width of a page is 600px. The height is max at 800px.
pass:[<div align="center"><svg height="200" width="600"><rect style="fill:rgb(255,255,255);stroke-width:1;stroke:rgb(0,0,0)" height="200" width="600"></rect></svg></div>]
You can use task to create your QCM:
* [ ] good
* [ ] bad
* [ ] ...
And you can use all the great feature of AsciiDocLive