When I generate Doxygen documentation in PDF format, I get plenty of different files with a single diagram in each.
Is it possible to obtain a single PDF document, organized
See Converting a LaTeX document to a PDF document.
When Doxygen is finished processing, in the latex directory there's a file called 'refman.tex'.
There are three ways you can use that file to get 'a book' out of Doxygen:
LaTeX -> dvips -> ps2pdf
latex myfile
dvips myfile
ps2pdf myfile.ps
LaTeX -> dvipdfm
latex myfile
dvipdfm myfile
pdflatex (or pdftex for plain TeX)
pdflatex myfile