使用Itext 5.5中的Acrofield包装阿拉伯文本
使用Itext 5.5中的Acrofield包装阿拉伯文本
提问于 2014-06-17 17:44:50
我已经用一个多行文本框制作了一个pdf模板，并且必须使用PDFStamper在Acrofield中设置一些阿拉伯数据。对于第一行，文本的运行方向是正确的，但是当发生文本包装时，它会发生变化。
请指点。
package test;
import java.io.FileOutputStream;
import java.io.IOException;
import com.itextpdf.text.DocumentException;
import com.itextpdf.text.FontFactory;
import com.itextpdf.text.pdf.AcroFields;
import com.itextpdf.text.pdf.BaseFont;
import com.itextpdf.text.pdf.PdfReader;
import com.itextpdf.text.pdf.PdfStamper;
public class TextFields{
public static final String RESULT1 = "D:/template.pdf";
public static final String RESULT2 = "D:/pdf/result.pdf";
protected int tf;
public TextFields(int tf) {
this.tf = tf;
}
public void manipulatePdf(String src, String dest) throws IOException, DocumentException {
PdfReader reader = new PdfReader(src);
FontFactory.registerDirectories();
BaseFont unicode = null;
unicode = BaseFont.createFont("D:/arialuni.ttf", BaseFont.IDENTITY_H, BaseFont.EMBEDDED);
PdfStamper stamper = new PdfStamper(reader, new FileOutputStream(dest));
AcroFields form = stamper.getAcroFields();
stamper.getAcroFields().addSubstitutionFont(unicode);
form.setField("TextBox","اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب");
stamper.close();
reader.close();
}
public static void main(String[] args) throws DocumentException, IOException {
TextFields example = new TextFields(0);
example.manipulatePdf(RESULT1, RESULT2);
}
}回答 3
Stack Overflow用户
回答已采纳
发布于 2014-06-18 10:51:57
我看到你没有把文件弄平。如果您打算保持文档的交互性，则应该指示iText不要生成任何外观。这样做是可以的：
form.setGenerateAppearances(false);通过这样做，您可以告诉PDF查看器创建外观。如果问题仍然存在，问题就存在于PDF查看器中，而不是在iText级别。
如果您打算将表单扁平化，我担心您在当前版本的iText中遇到了限制。你需要一个解决办法。请看一下FillFlattenMerge3示例。在这个例子中，我们得到每个字段的位置：
AcroFields form = reader.getAcroFields();
positions = new HashMap<String, Rectangle>();
Rectangle rectangle;
Map<String, AcroFields.Item> fields = form.getFields();
for (String name : fields.keySet()) {
rectangle = form.getFieldPositions(name).get(0).position;
positions.put(name, rectangle);
}我们使用这些位置在适当的位置使用ColumnText对象而不是使用setField()方法绘制字段的内容：
Rectangle rect = positions.get(name);
Phrase p = new Phrase(value, FONT);
ColumnText.showTextAligned(cb, Element.ALIGN_LEFT,
p, rect.getLeft() + 2, rect.getBottom() + 2, 0);这还不能解决您的问题，因为showTextAligned()方法没有包装文本。与使用showTextAligned()方法不同，您需要使用setRunDirection()、addElement()、setSimpleColumn()和go()方法：
ColumnText column = new ColumnText(writer.getDirectContent());
column.setSimpleColumn(rect);
column.setRunDirection(PdfWriter.RUN_DIRECTION_RTL);
column.addElement(new Paragraph("اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب", unicode));
column.go();现在，你的文字将被正确地包装，而不会折断连接。
Stack Overflow用户
发布于 2014-06-18 11:58:15
下面的代码适用于我。
我在test.css中使用了p{字体-家族：“arial”；}。
import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import java.util.StringTokenizer;
import com.itextpdf.text.Document;
import com.itextpdf.text.DocumentException;
import com.itextpdf.text.Element;
import com.itextpdf.text.Font;
import com.itextpdf.text.Font.FontFamily;
import com.itextpdf.text.Rectangle;
import com.itextpdf.text.pdf.AcroFields;
import com.itextpdf.text.pdf.ColumnText;
import com.itextpdf.text.pdf.PdfContentByte;
import com.itextpdf.text.pdf.PdfImportedPage;
import com.itextpdf.text.pdf.PdfPageEventHelper;
import com.itextpdf.text.pdf.PdfReader;
import com.itextpdf.text.pdf.PdfWriter;
import com.itextpdf.tool.xml.ElementList;
import com.itextpdf.tool.xml.XMLWorker;
import com.itextpdf.tool.xml.XMLWorkerHelper;
import com.itextpdf.tool.xml.css.CssFile;
import com.itextpdf.tool.xml.html.Tags;
import com.itextpdf.tool.xml.parser.XMLParser;
import com.itextpdf.tool.xml.pipeline.css.CSSResolver;
import com.itextpdf.tool.xml.pipeline.css.CssResolverPipeline;
import com.itextpdf.tool.xml.pipeline.end.ElementHandlerPipeline;
import com.itextpdf.tool.xml.pipeline.html.HtmlPipeline;
import com.itextpdf.tool.xml.pipeline.html.HtmlPipelineContext;
public class FillFlattenMerge3 {
public static final String SRC = "C:/templatestnew.pdf";
public static final String DEST = "C:/NewFile.pdf";
public static final Font FONT = new Font(FontFamily.HELVETICA, 10);
protected Map<String, Rectangle> positions;
public static void main(String[] args) throws IOException,
DocumentException {
File file = new File(DEST);
file.getParentFile().mkdirs();
new FillFlattenMerge3().manipulatePdf(SRC, DEST);
}
public class Background extends PdfPageEventHelper {
PdfImportedPage background;
public Background(PdfImportedPage background) {
this.background = background;
}
@Override
public void onEndPage(PdfWriter writer, Document document) {
PdfContentByte cb = writer.getDirectContentUnder();
cb.addTemplate(background, 0, 0);
}
}
public void manipulatePdf(String src, String dest)
throws DocumentException, IOException {
PdfReader reader = new PdfReader(src);
AcroFields form = reader.getAcroFields();
positions = new HashMap<String, Rectangle>();
Rectangle rectangle;
Map<String, AcroFields.Item> fields = form.getFields();
for (String name : fields.keySet()) {
rectangle = form.getFieldPositions(name).get(0).position;
positions.put(name, rectangle);
}
Document document = new Document();
PdfWriter writer = PdfWriter.getInstance(document,
new FileOutputStream(dest));
writer.setPageEvent(new Background(writer.getImportedPage(reader, 1)));
document.open();
PdfContentByte cb = writer.getDirectContent();
process(cb, "TextBox", "<p> اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب اب </p>", writer, document);
document.close();
reader.close();
}
protected void process(PdfContentByte cb, String name, String value,
PdfWriter writer, Document document) throws DocumentException,
IOException {
Rectangle rect = positions.get(name);
// mycode starts
XMLWorkerHelper helper = XMLWorkerHelper.getInstance();
// CSS
CSSResolver cssResolver = helper.getDefaultCssResolver(true);
CssFile cssFile = helper.getCSS(new FileInputStream(
"D:\\Itext_Test\\Test\\src\\test.css"));
cssResolver.addCss(cssFile);
// HTML
HtmlPipelineContext htmlContext = new HtmlPipelineContext(null);
htmlContext.setTagFactory(Tags.getHtmlTagProcessorFactory());
htmlContext.autoBookmark(false);
// Pipelines
ElementList elements = new ElementList();
ElementHandlerPipeline end = new ElementHandlerPipeline(elements, null);
HtmlPipeline html = new HtmlPipeline(htmlContext, end);
CssResolverPipeline css = new CssResolverPipeline(cssResolver, html);
// XML Worker
XMLWorker worker = new XMLWorker(css, true);
XMLParser parser = new XMLParser(worker);
// mycode ends
ColumnText column = new ColumnText(writer.getDirectContent());
column.setSimpleColumn(rect);
column.setRunDirection(PdfWriter.RUN_DIRECTION_LTR);
ByteArrayInputStream is = new ByteArrayInputStream(
value.getBytes("UTF-8"));
parser.parse(is);
int status = ColumnText.START_COLUMN;
for (Element e : elements) {
if (ColumnText.isAllowedElement(e)) {
column.addElement(e);
status = column.go();
}
}
}
}Stack Overflow用户
发布于 2016-07-09 13:55:37
我也有同样的问题。您必须通过acrobat重新创建您的template.pdf，并将文本框的字体设置为您的os中已知的字体之一。
祝好运。
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原文链接：
https://stackoverflow.com/questions/24270195
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