gPDFText is a text editor for GTK+ that opens PDF documents for ebook readers, converts the text contents into plain ASCII text, restores the original paragraphs and removes unwanted line breaks to allow easier zooming on the reader.
Tabfmt is a command line utility to format tabular data. It reads lines from one or more files or from standard input, breaks the lines into fields given a set of field delimiters, and prints a table with constant-width columns to standard output.