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 Post subject: Arabic support
PostPosted: Mon Oct 20, 2008 2:38 pm 
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How can i write pdf in arabic language


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PostPosted: Thu Oct 30, 2008 12:14 pm 
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Location: Cologne, Germany
PDFsharp Unicode sample wrote:
The current implementation of PDFsharp is limited to left-to-right languages.
Languages like Arabic cannot yet be created even with Unicode fonts. Also the so called CJK (Chinese, Japanese, Korean) support in PDF can also not be addressed with PDF sharp.
However, we plan to support as much as possible languages with PDFsharp. If you are a programmer and a native speaker of one of these languages and you like to create PDF
documents in your language, you can help us to implement it in PDFsharp. You don't have to do the programming, but just help us to verify our implementation.

There's some work left to be done.
How urgently do you need it?

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Thomas Hoevel
PDFsharp Team


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PostPosted: Fri Jan 23, 2009 6:13 pm 
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hi.

It's really urgently

I use only PDFsharp

I'm C# programmer

I'm ready if can help.


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 Post subject: Re: Arabic support
PostPosted: Tue Sep 01, 2009 1:03 pm 
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Hello
I'm currently also working on a program that prints reports using PDFsharp.
PDFsharp works great, but my program should also be able to work with Arabic and Chinese languages.
Does implementing the support for these languages have some kind of priority at the moment?
Or do you have it planned for a certain version of PDFsharp?

Out of curiosity, does this problem still exist, and what is the problem with rendering these characters?
<quote>Languages like Arabic cannot yet be created even with Unicode fonts.</quote>

Regards
Arno Piening


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 Post subject: Re: Arabic support
PostPosted: Tue Sep 01, 2009 1:26 pm 
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Hi, Arno!
Arno Piening wrote:
Out of curiosity, does this problem still exist, and what is the problem with rendering these characters?
<quote>Languages like Arabic cannot yet be created even with Unicode fonts.</quote>

The shape of a character depends on its neighbours. This is not yet implemented.
And RTL (Right-to-Left) support is not yet implemented either.

And also part of the problem: we can't read neither Arabic nor Chinese.
We need someone who can and who will tell us what's wrong and what's right.

It's not on the list for the next release:
http://www.pdfsharp.net/wiki/RoadMap.ashx
But OTOH this list is dynamic ...

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Thomas Hoevel
PDFsharp Team


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 Post subject: Re: Arabic support
PostPosted: Tue Sep 01, 2009 2:25 pm 
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Wow, that’s a fast reply.

Quote:
And also part of the problem: we can't read neither Arabic nor Chinese.
We need someone who can and who will tell us what's wrong and what's right.

I can see how that would be a problem :)
Unfortunately i’m not able to read them either. I'll keep an eye on the development to see how things are going.
Again thanks for the reply and the great library.

Regards,
Arno Piening


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 Post subject: Re: Arabic support
PostPosted: Tue Jan 19, 2010 8:22 am 
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I am trying to do something.
currently it can accept Tahoma. but in the output the Chinese character can't be displayed.
I think the cause is the font glyph is not embeded in? is it?


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 Post subject: Re: Arabic support
PostPosted: Tue Jan 19, 2010 9:29 am 
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Reed wrote:
I think the cause is the font glyph is not embeded in? is it?

The Tahoma font that comes with Windows XP has no Chinese characters.

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Thomas Hoevel
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 Post subject: Re: Arabic support
PostPosted: Tue Apr 27, 2010 7:39 am 
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Hi,

I do speak arabic and willing to participate in supporting it in PDFSharp :D

Thomas Hoevel wrote:
The shape of a character depends on its neighbours. This is not yet implemented.
And RTL (Right-to-Left) support is not yet implemented either.

And also part of the problem: we can't read neither Arabic nor Chinese.
We need someone who can and who will tell us what's wrong and what's right.


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 Post subject: Re: Arabic support
PostPosted: Wed Apr 28, 2010 2:12 pm 
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Thomas Hoevel wrote:
Hi, Arno!
Arno Piening wrote:
Out of curiosity, does this problem still exist, and what is the problem with rendering these characters?
<quote>Languages like Arabic cannot yet be created even with Unicode fonts.</quote>

The shape of a character depends on its neighbours. This is not yet implemented.
And RTL (Right-to-Left) support is not yet implemented either.

And also part of the problem: we can't read neither Arabic nor Chinese.
We need someone who can and who will tell us what's wrong and what's right.

It's not on the list for the next release:
http://www.pdfsharp.net/wiki/RoadMap.ashx
But OTOH this list is dynamic ...


Hi, Hoevel!
I can help to test Chinese support as I am a native Chinese speaker.
I've read your Unicode example, if pdfsharp can read Unicode , then it seams not so hard to support Chinese characters. For a left-to-right layout, the sequence of Chinese characters and that of Latin characters are same. For a right-to-left layout, there are some differences. So for Chinese or generally CJK support, the left-to-right could be implemented just like Latin languages.
And there is an iTextSharp project which has good CJK support, may borrow something from it.


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 Post subject: Re: Arabic support
PostPosted: Mon Apr 11, 2011 5:35 pm 
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Any update on the languages such as Chinese, Korean, Japanese supports ? I am using PDFSharp to replace our existing reports but having issues with Japanese charaters.


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 Post subject: Re: Arabic support
PostPosted: Mon Apr 11, 2011 6:41 pm 
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Is there any work around in this area such as converting Japanese text into image and then display using pdfsharp ?


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 Post subject: Re: Arabic support
PostPosted: Wed Jul 13, 2011 5:32 pm 
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Dear Support!

Is any update for Chinese language?

BRGDS
Grzegorz Pawluch


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 Post subject: Re: Arabic support
PostPosted: Tue Nov 22, 2011 10:56 am 
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I've been trying to get chinese glyphs into a pdf trough pdfSharp, WITH SUCCESS!
It semes like this is a matter of selecting the right font. The "Arial Unicode MS" is a font with 50.377 glyphs, and includes what I understand most languages.

What I think is missing is pdfSharp is some fallback method for when glyphs are not represented in the selected font. It sems like wordpad and other editors uses this is some way...

Test this:
Code:
      Document document = new Document();
      Section section = document.AddSection();
      Paragraph paragraph = section.AddParagraph();
      document.Styles[StyleNames.Normal].Font.Name = "Arial Unicode MS";
      paragraph.AddFormattedText("This should be \"edit\" in chinese: ");
      paragraph.AddFormattedText("编辑");


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 Post subject: Re: Arabic support
PostPosted: Mon Apr 30, 2012 8:50 am 
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Hello,

the only problem I see is that PDFSharp does no line wrap when the end of the (visible) line is reached and there is no spacing character like blank or tab. As in Japanese no spaces are used the full text cannot be read. All is printed in one line. This is also a problem if e.g. a hyperlink text is very long so this is not a real "Japanese" problem.

Can I tell PDFSharp to do a hard wrap when there is no space for a long "word" after the last visible character?

Thanks for any suggests in advance,
Michael


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 Post subject: Re: Arabic support
PostPosted: Thu Nov 27, 2014 4:09 pm 
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Posts: 34
Your sample works for me in separate console application. But for some reason I cannot make it work in my web application (asp.net2) using same routines.
Does anybody have any clue what could be the problem?



Mikael wrote:
I've been trying to get chinese glyphs into a pdf trough pdfSharp, WITH SUCCESS!
It semes like this is a matter of selecting the right font. The "Arial Unicode MS" is a font with 50.377 glyphs, and includes what I understand most languages.

What I think is missing is pdfSharp is some fallback method for when glyphs are not represented in the selected font. It sems like wordpad and other editors uses this is some way...

Test this:
Code:
      Document document = new Document();
      Section section = document.AddSection();
      Paragraph paragraph = section.AddParagraph();
      document.Styles[StyleNames.Normal].Font.Name = "Arial Unicode MS";
      paragraph.AddFormattedText("This should be \"edit\" in chinese: ");
      paragraph.AddFormattedText("编辑");


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 Post subject: Re: Arabic support
PostPosted: Fri Aug 26, 2016 3:38 pm 
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Posts: 8
I'm interested in Arabic support, too. I already got Chinese working with PDFsharp.


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 Post subject: Re: Arabic support
PostPosted: Sat Aug 27, 2016 11:05 am 
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I found out, it is necessary to run the BIDI algorithm on the Arabic string. I think this needs to be done by PDFsharp. But still characters are not joined correctly.


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 Post subject: Re: Arabic support
PostPosted: Sat Aug 27, 2016 12:13 pm 
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Arabic worked for me. if u have webapp, u need to set RTL attribude for the page...
and for PDF... I think it works (I cant read it), no idea, but there were no complains


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 Post subject: Re: Arabic support
PostPosted: Sat Aug 27, 2016 12:28 pm 
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Posts: 8
This code doesn't look like code for PDFsharp.

Mikael wrote:
Test this:
Code:
      Document document = new Document();
      Section section = document.AddSection();
      Paragraph paragraph = section.AddParagraph();
      document.Styles[StyleNames.Normal].Font.Name = "Arial Unicode MS";
      paragraph.AddFormattedText("This should be \"edit\" in chinese: ");
      paragraph.AddFormattedText("编辑");


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 Post subject: Re: Arabic support
PostPosted: Sun Jul 02, 2017 2:50 pm 
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Joined: Sat Oct 18, 2008 4:15 pm
Posts: 34
Any way to do line wrapping in Chinese?
In Chinese or Japanese the text is one long line. I would need it to break at the end of page to the next line :(


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 Post subject: Re: Arabic support
PostPosted: Sun Jul 02, 2017 4:41 pm 
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Posts: 308
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Hi!
gastan wrote:
Any way to do line wrapping in Chinese?
With PDFsharp your code is responsible for linebreaks (or columnbreaks).
You probably have to call MeasureString for each single glyph to get width and height and then draw the characters in one column until you reach the margin for a columnbreak.

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Thomas
(Freelance Software Developer with several years of MigraDoc/PDFsharp experience)


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 Post subject: Re: Arabic support
PostPosted: Sat Jul 08, 2017 7:55 pm 
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I see. Well, regular text (english) breaks fine. So there obviously is something done.
Do you have some pointers or sample code for how to do custom line breaks?

thx


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 Post subject: Re: Arabic support
PostPosted: Sun Jul 09, 2017 9:14 am 
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gastan wrote:
Do you have some pointers or sample code for how to do custom line breaks?
PDFsharp includes the XTextFormatter class that is a sample for linebreaks.

With Latin characters you have words and linebreaks occur between words - there is a list of characters that allow breaks like blank, hyphen, comma, maybe dot also.
I have no idea where linebreaks in Japanese or Chinese will occur.

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Thomas
(Freelance Software Developer with several years of MigraDoc/PDFsharp experience)


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