[DVIPDFMx] Re: a question about CJK font

Sun Sep 27 07:16:43 KST 2009

Hi, Ôø¶¨·½.

Check the attached image that is the screenshot of your test1.pdf
under my Adobe Reader 9. I could not find any problem in your file.

1. The chinese characters in the first paragraph (with {GB}{song}  
option)
    are thin and of poor quality, because the embedded fonts were
    Type3 bitmap fonts.

2. However, the characters are not in the second paragraph (with {GB} 
{gbsn} option)
    because the embedded fonts were Type1 scalable fonts.

As I know, almost recent PDF viewers (e.g., Adobe Reader, Preview,  
etc.) handle
Type3 bitmap fonts in this way.

Try to check your test1.pdf with Adobe Reader 9, not with Acrobat  
Reader 7 Pro.

Best regards, ChoF.

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On Sep 27, 2009, at 12:17 AM, Ôø¶¨·½ wrote:

> Dear Dr/Professor Cho,
>
>     Thank you very much for your quick replying mails.
>     Yes, the test1.tex file I sent to you last time is just
> a part cut from the demonstration file you uploaded on the
> dvipdfmx homepage. Sorry for this point.
>     I compared \begin{CJK*}{GB}{song} and \begin{CJK*}{GB}{gbsn}
> and find that, "song" is better to my needs. Because it looks
> more dark than "gbsn". The attachment is my comparisons.
>     But both "song" and "gbsn" looks too light(comparing with
> English). This makes me feel very disappointing because I need use
> cjk+latex+dvipdfmx to make presentations(using beamer class).
> Since the chinese character looks too light, audiences sit
> at about 2 meters away from the screen will not be able to
> look my presentations clearly.
>     Can you give me some hints to solve this problem?
>
>     Another little question is, the above test1.tex file can
> only be compiled in the same directory as "cjkmix2" which include
> all the files you uploaded on the dvipdfmx homepage and named
> "testsuite_cjk-latex.tar.gz". How should it be processed if I
> want to compile it in other directorys? My environment is
> Windows XP, miktex2.7, Acrobat Reader 7.0(professional).
>
>     Best regardness to you.
>
>     Sincerely yours, Ding-fang Zeng
>
>
>> From: Jin-Hwan Cho <jinhwan.cho at gmail.com>
>> Reply-To:
>> To: "Ôø¶¨·½"<dfzeng at bjut.edu.cn>
>> Subject: Re: a question about CJK font and dvipdfmx
>> Date:Thu, 24 Sep 2009 14:31:23 +0900
>>
>> Dear Ôø¶¨·½,
>>
>> The attached "test1.tex" looks the same as the sample that I uploaded
>> at the homepage of dvipdfmx, and this file was made to show that it  
>> is
>> possible to support CJK-LaTeX with dvipdfmx + scalable fonts.
>>
>> However, as I know, nobody use CJK-LaTeX in the production level.
>> For Korean typesetting, ko.TeX is used and for Japanese typesetting,
>> pTeX or upTeX is used instead. The main reason is that CJK-LaTeX
>> does not support CJK typesetting features except for characters and
>> line breaking. So if you want to see just CJK characters in your
>> document,
>> CJK-LaTeX will do a good job, but if you want to make a book, it  
>> won't.
>>
>> Moreover, the attached "test1.pdf" was made by "dvipdfm" not  
>> "dvipdfmx".
>> There is a big difference between the two programs. "dvipdfm" does  
>> not
>> support CJK truetype or opentype fonts. So the attached "test1.pdf"
>> includes
>> only the Type3 fonts (bitmap fonts).
>>
>> Actually, embedded Type3 (bitmap) fonts look thin in PDF rendering
>> programs (e.g., Adobe Reader), and the quality is poor if it is
>> printed out.
>> Instead if you check the following PDF file generated by the same  
>> source
>> but with scalable fonts,
>>
>> http://project.ktug.or.kr/dvipdfmx/testsuite/cjkmix2-embed.pdf
>>
>> you can see the difference.
>>
>> Therefore, the solution is to use scalable fonts instead of bitmap
>> fonts.
>>
>> I'm using texlive 2009 in Mac OS X. In this distribution, CJK-LaTeX  
>> has
>> the font description file c10gbsn.fd and it loads gbsnlp*.vf  
>> (virtual)
>> and
>> then gbsnu*.pfb (type1).
>>
>> So, if you change one line in "test1.tex" as follows
>>
>> \begin{CJK*}{GB}{song} ==> \begin{CJK*}{GB}{gbsn}
>>
>> you can get an output of better quality.
>>
>> Suppose you changed "test1.tex" as above. If you want to use  
>> simsun.ttc
>> in MS-Windows, you may need the following two CMap files and  
>> simsun.ttc
>> in the working directory
>>
>> Adobe-GB1-UCS2 and UniGB-UCS2-H
>>
>> which can be found under C:\Program Files\Adobe\...\CMap if you have
>> Adobe Reader. Then make a file "cid-x.map" in the working directory  
>> as
>>
>> gbsnlp at UGB@ UniGB-UCS2-H :0:simsun.ttc
>>
>> If you run dvipdfmx test1, you may get an output with simsun truetype
>> font.
>>
>> Best regards, ChoF.
>>
>> On Sep 24, 2009, at 1:54 AM, Ôø¶¨·½ wrote:
>>
>>> My question is mainly about Chinese(it also appears in Japanese
>>> and Korean languages) font. But since it always
>>> occurs in processes involving cjk+dvipdfmx, I think experts from
>>> dvipdfmx project may help me. My environment includes:
>>> Windows XP, miktex 2.7, winedt5.4, acrobat reader 7.0(professional)
>>>
>>> Take the following demo as an example, I save it as test1.tex
>>> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
>>> % This is cjkmix2.tex for testing mixed CJK characters.
>>> % Created by Jin-Hwan Cho
>
>>> \documentclass[12pt]{article}
>>> \usepackage{times}
>>> \usepackage{CJK}
>>> \usepackage[CJK, overlap]{ruby}
>>> \renewcommand{\rubysep}{-0.3ex}
>>> \begin{document}
>>> \section{Typesetting CJK Text with the CJK Package}
>>> \bigskip
>>> \subsection{Simplified Chinese (GB encoding)}
>>> \begin{CJK*}{GB}{song}
>>> \CJKtilde
>>> \noindent ±¾³£ÎÊÎÊ´ð¼¯~(FAQ list)~ÊÇ´ÓÒ»Ð©¾³£±»ÎÊµ½µÄÎÊÌâ¼°ÆäÊÊµ±µÄ 
>>> ½â
>>> ´ðÖÐ£¬ÒÔ·½±ãµÄÐÎÊ½ÕªÒª¶ø³öµÄ¡£This FAQ list is extracted from some
>>> frequently asked questions and appropriate answers to them.~¸úÉÏÒ»°æ 
>>> ²»
>>> Í¬µÄÊÇ£¬Æä±àÅÅ½á¹¹ÒÑ³¹µ×¸Ä±ä¡£\textbf{ÓÐ¹ØÐÂ½á¹¹µÄÏ¸½Ú£¬¿É²Î¿¼¡¸ÈçºÎ 
>>> ÔÄ
>>> ¶Á±¾ÎÊ´ð¼¯¼°ÁË½âÆä±àÅÅ½á¹¹¡¹¸ÃÏîÖÐµÄËµÃ÷¡£}
>>> \end{CJK*}
>>> \end{document}
>>> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
>>> after processing by command line:
>>> latex test1.tex
>>> dvipdfmx test1.dvi
>>> I get test1.pdf file. But in the resulting file, especially
>>> in the maintext part, Chinese character looks to thin, while
>>> the Einglish character looks normal.
>>>
>>> In the usual documents making, this may not be important. But
>>> in making presentations(combining with beamer class), this is
>>> fatal. The listener always complain that they feel very tired
>>> to read the Chinese characters in my presentation.
>>>
>>> Let all the chinese characters lie in the environment \textbf{}
>>> can solve this question partly. But this brings another question,
>>> when I need to emphasize some sentences, I have no extra choices.
>>>
>>> Can you give me one way getting out this corner?
>>>
>>> Best regardness to you.
>>>
>>> Sincerely yours, Ding-fang Zeng
>>>
>>>
>
>>
> <test1.tex><test1.pdf>