title: PDF font - .afm file "bad /BBox" error
body: <p>I'm working on creating PDF files in PHP with the R&amp;OS PDF class (<a href="http://www.ros.co.nz/pdf" rel="nofollow noreferrer">http://www.ros.co.nz/pdf</a>) trying to add some more fonts to the output. It requires a TTF file and an AFM file for the metrics, but I can't get around the "bad /BBox" error as referred to in this post: <a href="https://stackoverflow.com/questions/1676342/generating-afm-from-ttf">Generating .afm from .ttf</a></p>
  
  <p>At first I thought it was that I wasn't using properly made ttf files, but I've tried converting some fonts that I know are legit (Arial) and I still get the error, so now I think it must be the AFM conversion.</p>
  
  <p>The Stack post above refers to <a href="http://fpdf.fruit-lab.de/" rel="nofollow noreferrer">http://fpdf.fruit-lab.de/</a> as a good conversion tool- maybe I'm just using the wrong mapping? Is there a specific map format the PDF prefers?</p>