As an academic, I often have to write letters and grant applications where I need to need to prepare a single PDF which includes the letter or the grant application with one of more research papers “attached” at the end. In principle, I could generate the letter/grant separately and use a tool such as qpdf to merge multiple files into a single file. But I find it much easier to generate everything from a single tex file.

See also: Original Source by Aditya Mahajan

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