How to watch comic books or pdf's on my tiny M3?

I wandered, if I could change CBR or PDF files so, that I could watch them as JPG files big enough to see the letters or the clouds with some texts inside.

It would change the world I see the world, cause I'm always on my way to my company almost 1 hour or so, so I could spend some of it reading somethin.

I tried reading texts (books, jokes), but it is boring ...

I can convert some movies but the soft is too slow for me, to be patient, so ...

any ideas how to "beat that buddy"?