[poppler] pdf chinese font broken

[suzuki toshiya]

It's dependent with which output device you choose.

* SplashOutputDev has a public method to enable/disable the hinting,
  setFreeTypeHinting(), see SplashOutputDev.h. The initial setting
  of the boolean switch is done in the constructor
  SplashOutputDev::SplashOutputDev(), see SplashOutputDev.cc.

* CairoOutputDev has no public method to enable/disable the hinting.
  For hardwired setting, see how cairo_ft_font_face_create_for_ft_face()
  is invoked in CairoFontEngine.cc.

* ArthurOutputDev has a public method to enable/disable the hinting,
  setFontHinting().

Regards,
mpsuzuki

poppleruser3 poppleruser3 wrote:
> Hi Mpsuzuki,
> 
> I have try to open poppler's Hinting
> I have search for the code
> and change some flag and bool then compile..
> but I still hit the broken problem..
> Can you point me out how to modify the source and make Hinting enable...
> 
> Thanks
> 
> 2012/8/29 suzuki toshiya <mpsuzuki at hiroshima-u.ac.jp>
> 
>> xpdf enables TrueType hinting by default, but poppler disable
>> it by default. There is a long discussion whether TrueType
>> hinting should be enabled by default (because some fonts are
>> recognized that the unhinted result is better than the hinted
>> result), and so please don't request as poppler should enable
>> the hinting by default. Of course you can modify the poppler
>> source and build your own poppler binary that enables TrueType
>> hinting by default.
>>
>> Regards,
>> mpsuzuki
>>
>> poppleruser3 poppleruser3 wrote:
>>> Hi Mpsuzuki,
>>>
>>> Thanks for your reply
>>> and I  found a thing
>>> the pdf in my attachment that can be open very well in xpdf 3.03(3.02
>> still
>>> fail)
>>> do you know why xpdf open that like a magic...
>>>
>>> Thanks
>>>
>>> and the font you can direct download from web(maybe search DFFangSong ..)
>>>
>>> 2012/8/29 suzuki toshiya <mpsuzuki at hiroshima-u.ac.jp>
>>>
>>>> Thank you for giving example of yet another font that requires
>>>> TrueType hinting for readable result. DFFangSong is not yet
>>>> blacklisted in FreeType2 (if you want to see the list, please
>>>> check
>>>>
>> http://git.savannah.gnu.org/cgit/freetype/freetype2.git/tree/src/truetype/ttobjs.c#n155
>>>>
>> http://git.savannah.gnu.org/cgit/freetype/freetype2.git/tree/src/truetype/ttobjs.c#n256
>> )
>>>> I will add it soon, and the next release of FreeType2 2.4.11
>>>> will know it by default. How could I get DFFangSong font?
>>>>
>>>> Also some people may say "the blacklist should be configurable
>>>> to avoid the repeated request of the update"; now a public API
>>>> to manipulate the internal rasterization parameter is being
>>>> discussed among FreeType developers. I will try to the blacklist
>>>> configurable via new API, but yet I don't have good candidate
>>>> about "which library should manage the blacklist in runtime".
>>>> I don't think poppler is the best candidate.
>>>>
>>>> Regards,
>>>> mpsuzuki
>>>>
>>>> poppleruser3 poppleruser3 wrote:
>>>>> Any one know why poppler can't decode the font  dffangsong-w4-win-bf
>>>>> i already install poppler-data-0.4.5 and update freetype to 2.4.10
>>>>> but the word still broken..
>>>>>
>>>>>
>>>>>
>> ------------------------------------------------------------------------
>>>>>
>>>>>
>> ------------------------------------------------------------------------
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>>>>> poppler at lists.freedesktop.org
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>>
>