[Migrated content. Thread originally posted on 17 February 2005]
Recently I was wondering how PDF-files are build and if it's possible to write one's own PDF-writer.Like me, I noticed some users wanted to be able to preview there documents before printing them.
Here's a link to Ghostview & Ghostscript.
http://www.cs.wisc.edu/~ghost/
You just have to install these programs, install a postscript-printer and send your data to it.
Then, if you open Ghostview, your printed document can be previewed on screen and even be transformed to a PDF-file.
No waste of paper anymore while testing your printer-software.
Kind regards ;-)