# [NTG-pdftex] [PATCH v3] pdftex - Add support for encfile and \pdfgentounicode for PK fonts

Hans Hagen pragma at wxs.nl
Thu Mar 30 09:15:32 CEST 2017

```On 3/30/2017 1:58 AM, Karl Berry wrote:

> I believe the original idea of scalable Type 3 was that the font code
> itself would do the scaling to different sizes; that's why the font only
> had to be included once. Like a Type 1. But since the demise of PGC
> et al., that was no longer operative.

It might even refer to the thesis-related feature of automatic generated
expanded versions (when doing hz expansion) which was afaik removed
later for bitmaps.

> To sum up, I think the current behavior is good, and I should change the
> manual to get rid of PGC stuff, get rid of the phrase "scalable Type 3",
> and explain the current behavior.

Yes, unless in some appendix you want to preserve history ... but anyway
it really makes no sense to keep prc around (btw, I rmember lots of
issues, because at that time type 3 rendering was not that good. It were
the years that we started with different method for outputting rules
depending on size thresholds and what acrobat liked most).

Hans

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