Question

我制作了一个带有多行文本框的pdf模板，并且必须使用PDFStamper在Acrofields中设置一些阿拉伯数据。文本的运行方向对于第一行是正确的，但是当文本换行发生时它会改变。

请指导。

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);
    }
}

Answer 1

我看到你没有展平文件。如果您的意图是文档保持交互，则应指示iText不要生成任何外观。这可以这样做：

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，则问题出在PDF查看器中，而不是iText级别。

如果您打算压扁表单，我担心您在当前版本的iText中遇到了限制。您需要使用变通方法。请查看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);
}

我们使用这些位置使用ColumnText对象在适当的位置绘制字段的内容，而不是使用setField()方法：

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);

这还没有解决您的问题，因为showTextAligned()方法不会包装文本。您需要使用showTextAligned()，setRunDirection()，addElement()和setSimpleColumn()方法，而不是使用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，您的文字将被正确包裹而不会破坏连字。

Answer 2

以下代码适用于我。

我在test.css中使用了p {font-family：“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();
            }
        }

    }
}

Answer 3

我有同样的问题。你必须通过adobe acrobat pro重新创建你的template.pdf，并将你的文本框的字体设置为你的操作系统中的已知字体之一，如arial。

祝你好运。

在Itext 5.5中使用Acrofield包装阿拉伯语文本

3 个答案: