I have two searchable pdf documents say even.pdf and odd.pdf which contains respectively even and odd pages of a book. I can decompile each pdf to separate files 001.pdf 002.pdf oo3.pdf ....The question is how to merge them? They are both even and odd sequences numbered 1,2,3. If it where other numbering on decompile stage with pdftk for even 1,3,5 and for odd 2,4,6 instead of existing order 1,2,3, 4.. i coulde simple merge them, but i ignore this method of numbering with pdftk. May be i need to do the task in other way?