Hello,
I met with a PDF file which does not embed font subsets and consequently failed
to extract text from it.
I checked out the corresponding font dictionary and found the following things
(indirect references are changed to embedded PDF objects in the following
pseudo code and dictionary items are shown as /Name=VALUE):
<<C2_0
/Type=/Font
/BaseFont=/MingLiU
/SubType=/CIDFontType2
<<CIDSystemInfo
/Ordering="CNS1"
/Registry="Adobe"
/Supplement=3
>>
<<FontDesciptor
/FontName=/MingLiU
/Lang=/zh-TW
/FontFamily=/MingLiU
% there's no FontFile2 or other embedded font resource in the FontDescriptor
dictionary
>>
How to extract text from such kind of document?
There's an Asian pack in SourceForge which contains a CNS1 file, and maybe
useful for such kind of font decoding jobs, but I don't know how to utilize
that pack. Anyone has ever done something similar please give me a hint.
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