bundles/org.simantics.help.base/src/org/simantics/help/base/internal/PDFUtil.java

   1 package org.simantics.help.base.internal;
   2
   3 import java.io.File;
   4 import java.io.IOException;
   5
   6 import org.apache.pdfbox.cos.COSDocument;
   7 import org.apache.pdfbox.io.RandomAccessFile;
   8 import org.apache.pdfbox.pdfparser.PDFParser;
   9 import org.apache.pdfbox.pdmodel.PDDocument;
  10 import org.apache.pdfbox.pdmodel.PDDocumentInformation;
  11 import org.apache.pdfbox.text.PDFTextStripper;
  12 import org.eclipse.help.search.ISearchDocument;
  13
  14 /**
  15  * @author Tuukka Lehtonen
  16  */
  17 public class PDFUtil {
  18
  19     public static void stripText(File fromPdf, ISearchDocument doc) throws IOException {
  20         PDFParser parser = new PDFParser(new RandomAccessFile(fromPdf, "r"));
  21         parser.parse();
  22
  23         try (COSDocument cosDoc = parser.getDocument()) {
  24             try (PDDocument pdDoc = new PDDocument(cosDoc)) {
  25                 int numPages = pdDoc.getNumberOfPages();
  26                 PDFTextStripper stripper = new PDFTextStripper();
  27                 stripper.setStartPage(1);
  28                 stripper.setEndPage(numPages);
  29                 String text = stripper.getText(pdDoc);
  30                 PDDocumentInformation docInfo = pdDoc.getDocumentInformation();
  31                 String title = docInfo.getTitle();
  32                 String subject = docInfo.getSubject();
  33                 if (title != null)
  34                     doc.setTitle(title);
  35                 if (subject != null)
  36                     doc.setSummary(subject);
  37                 doc.addContents(text);
  38             }
  39         }
  40     }
  41
  42 }