OK, all steps(I think)

go to App Manager

Click Download

click menu at top, select Search

type rootsh

click on it to install

check yes and everything else OK

after succesful install close app manager

go through menus and find and click X-terminal(looks like a black box with green writing $ in it.

type root and then hit enter

type apt-get install imagemagick(you might want to be on wifi, as there are a lot of dependencies to also download)

after install done you can type exit to go back to your regular user account

type cd MyDocs/DCIM

you are now in the directory where the pictures taken by camera are(unless you are using a memory card)

type ls -tr (that will list all the files with the most recently created one at the end so you can try converting the picture you just took but they are also named by time by default)

type convert <thefilename>.jpg <filenamefor pdf>.pdf (you don't need the brackets, that is just used here to denote substitution)


Hope that helps

PS forgot to include enabling whatever repository imagemagick is in too.