Letterpress is a Windows Notepad replacement and experimental text editor with declarative customization. It also brings many advanced features like file comparison, HTML, and PHP support, mathematical operators, and much more. It’s a simple text editor in which you just get a text entry area, and a handful of menus.
At the bottom of screen there is a notification bar, that shows line and column information, encoding, tabs information, etc. and under various menus all the options are found. You can control elements of Whitespaces, Word Wrap, Modes by using the Format menu. It also let you to choose font and colors among various other options. You can easily customize options like Word Wrapping, and choose to show/hide Whitespaces, align with margins etc.
You can find the most powerful options in the Tools menu where where you can use workshop to launch grammar forge, theme designer, add macro support, compare files, perform HTML and PHP operations, and much more.
This software is in beta and runs on Windows XP, Windows Vista, and Windows 7. It sizes 6.6 MB and you can download it from here.