Internal PDFlib warning: Can't reencode Symbol font

[BB101]

I have successfully built a PDF creation tool that they now want a custom font to be used in.

I installed the font and go past an initial problem of metrics not supplied.

Now i get this problem when trying to use pdf_findfont:
Internal PDFlib warning:
Warning: Internal PDFlib warning: Can't reencode Symbol font 'SomeCustomFont' (using builtin) in somephpfile.php on line X

Thanks in advanced
--BB

 

[BB101]

The font is a PFM, does anyone know of a way around this? convert it to ttf?

Thanks
--BB