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      As reported by Noam S. on the user mailing list:

      My problem is that when trying to getText(doc) form a certain section of the pdf using setStartBookmark(item) and setEndBookmark(item) I get all the text rather than just the text from the specified section.

      WhiIe trying to resolve this I realized that the writeText(doc, outputStream) method always calls resetEngine() method. That will reset all the parameters and delete the bookmarks I set.

      The two lines that reset the bookmarks were added to resetEngine in PDFBOX-1808 in [ https://svn.apache.org/r1553175 ] in an attempt to save some memory.

      Another weird segment can be found in the trunk:

      I also found another weird piece of code in the trunk, which would mean that text extraction would fail if start and end bookmarks are identical:

              if (startPage != null && endPage != null &&
                  startBookmark.getCOSObject() == endBookmark.getCOSObject())
              {
                  // this is a special case where both the start and end bookmark
                  // are the same but point to nothing.  In this case
                  // we will not extract any text.
                  startBookmarkPageNumber = 0;
                  endBookmarkPageNumber = 0;
              }
      

      earlier, that segment was:

             if( startBookmarkPageNumber == -1 && startBookmark != null &&
                      endBookmarkPageNumber == -1 && endBookmark != null &&
                      startBookmark.getCOSObject() == endBookmark.getCOSObject() )
              {
                  //this is a special case where both the start and end bookmark
                  //are the same but point to nothing.  In this case
                  //we will not extract any text.
                  startBookmarkPageNumber = 0;
                  endBookmarkPageNumber = 0;
              }
      

      which makes more sense. The change was made last year in rev [ https://svn.apache.org/r1634252 ] as part of the pagetree refactoring.

      I am writing a test to prevent this from breaking in the future.

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              • Assignee:
                tilman Tilman Hausherr
                Reporter:
                tilman Tilman Hausherr
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