Re: many questions

[Karl Berry]

    And should files also be searched for in destination directory? I think that
    it doesn't matter for input files, but would be better for images.

What scenario do you have in mind with images?

My inclination is to say that searching the destination directory for
any kind of input file, image or otherwise, would just have great
potential for confusion, since the output dir is often some temporary
location; if it happened to include an image by the wrong name ... I
can't think of any other program that does this.  Better for users to
use -I explicitly, I think?