Normally the lines are not spread, so the default line spread factor is 1. This may not be ideal in all situations: The setspace package allows more fine-grained control over line spacing. To set "one and a half" line spacing document-wide, but not where it is usually unnecessary e.
LaTeX by Example
Plain text output?
In particular, this means most mathematical characters, Greek letters, and the like — even if they're in the normal Symbol font. If this isn't done right, you get the kind of mess frequently downloaded from the Web: The latter problem comes from differences in font encoding between the system the assembled the PDF file and the one on which it's displayed. This is why all but the basic fonts really must be embedded in the PDF file, even though this makes the file bigger. Though there are a number of HOWTO documents and Web pages devoted to this problem, I haven't found a single page that combines all the necessary information in one place. Hence, this document. How to proceed What to do depends on what your raw materials fonts and images are like, and on exactly what products you require.
LaTeX/Export To Other Formats
Run ghostscript on the PostScript file created by pdf2ps as follows: It will ask you which page you want to convert, whether you want to use anti-aliasing choose strong if you want to get something similar to what you see on the screen. Try different resolutions to fit your needs, but dpi should be enough. Usage is the same as dvipdfm. Run latex as usual to generate the dvi file.
Doing the LaTeX2e kernel, with no hacks in the source, would be relatively straight-forward. Throw in some low-level TeX, a few kernel hacks and a load of packages, and things are different. I've basically already done that as part of my Perl script, and I can add more on a case-by-case basis I'm not looking for a global solution.