填补Unicode字符PDF格式 [英] fill pdf form with unicode characters

问题描述

我试图插入一些Unicode的字数（阿拉伯语），以PDF形式用C＃我用iTextSharp的库，但是当我插入字符和保存字符在PDF文件中的Unicode字符没有得到显示，直到我双击的位置。应该出现chracters

 字符串pdfTemplate = @C：\po.pdf 
串NEWFILE = @G：\test\completed_fw4.pdf 
 PdfReader pdfReader =新PdfReader（pdfTemplate）; 
 PdfStamper pdfStamper =新PdfStamper（pdfReader，新的F​​ileStream（NEWFILE，FileMode.Create））; 
 AcroFields pdfFormFields = pdfStamper.AcroFields; 
 pdfFormFields.SetField（位置，TextBox1.Text）; 
 pdfStamper.FormFlattening = FALSE; 
 //关闭PDF 
 pdfStamper.Close（）; 
  

解决方案

有一对夫妇的方法可以解决这个问题，但最终你需要指定一个字体，能够呈现您的Unicode内容。

首先，创建一个 BASEFONT 对象指着你的Unicode字体，我用下面的Unicode Arial字体：

  VAR arialFontPath = Path.Combine（Environment.GetFolderPath（环境.SpecialFolder.Fonts），ARIALUNI.TTF）; 
 VAR arialBaseFont = BaseFont.CreateFont（arialFontPath，BaseFont.IDENTITY_H，BaseFont.EMBEDDED）; 
  

然后就可以设置每个字段的字体属性分别：

  pdfFormFields.SetFieldProperty（位置，TEXTFONT，arialBaseFont，NULL）; 
  

或者你也可以添加大量文档替换字体：

  pdfFormFields.AddSubstitutionFont（arialBaseFont）; 
  

I am trying to insert some unicode charaters (arabic) to PDF form with c# I used iTextSharp library but when I insert the characters and save characters in the PDF file the unicode characters not getting displayed until I double click on the position of the chracters that should be appeared.

string pdfTemplate = @"c:\po.pdf";
string newFile = @"g:\test\completed_fw4.pdf";
PdfReader pdfReader = new PdfReader(pdfTemplate);
PdfStamper pdfStamper = new PdfStamper(pdfReader, new FileStream(newFile, FileMode.Create));
AcroFields pdfFormFields = pdfStamper.AcroFields;
pdfFormFields.SetField("position", TextBox1.Text);
pdfStamper.FormFlattening = false;
// close the pdf
pdfStamper.Close(); 

解决方案

There's a couple of ways that you can fix this but ultimately you need to specify a font that is capable of rendering your Unicode content.

First, create a BaseFont object pointing to your Unicode font, I'm using Arial Unicode below:

var arialFontPath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Fonts), "ARIALUNI.TTF");
var arialBaseFont = BaseFont.CreateFont(arialFontPath, BaseFont.IDENTITY_H, BaseFont.EMBEDDED);

Then you can either set the font property on each field individually:

pdfFormFields.SetFieldProperty("position", "textfont", arialBaseFont, null);

Or you can add a document-wide substitution font:

pdfFormFields.AddSubstitutionFont(arialBaseFont);

这篇关于填补Unicode字符PDF格式的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！