TeXShop is a TeX previewer for OS X, written in Cocoa. Since PDF is a native file format on OS X, TeXShop uses "pdftex" and "pdflatex"; rather than "tex" and "latex" to typeset; these programs in the standard teTeX distribution of TeX produce PDF output instead of DVI output.
- Debugging code accidentally left in version 3.55 caused a pause between typesetting and display of the new pdf. This is fixed.
- OS X 10.7 or later