I know this is an old thread, but in case someone else finds this useful...
You can export a PDF from just about any program and import into Chief. It will retain all detail with "vector type fonts" that and not pixelated. I used Nitro for this as it allows export to ARCHD etc. This is a couple of screenshots of a "Code Matrix" that is common in Ontario for permits. It is done in Excel and printed to Nitro PDF:
Zoomed shot: