CODEWITHSUNDEEP
javadocxdocx4j
birdy
birdy

Reputation: 9646

How to save images from a word document in DOCX4J

I'm trying to traverse through a word document and save all the images found in the word document. I tried uploading the sample word document to the online demo and noticed that images are listed as:

/word/media/image1.png  rId5    image/png
/word/media/image2.png  rId5    image/png
/word/media/image3.jpg  rId5    image/jpeg

How can I programmatically save these images while traversing the document?

Currently I get all the text from the document like this: 

   WordprocessingMLPackage wordMLPackage = WordprocessingMLPackage.load(new java.io.File(filePath))
   MainDocumentPart documentPart = wordMLPackage.getMainDocumentPart()
   Document wmlDocumentEl = (org.docx4j.wml.Document)documentPart.getJaxbElement()
   Body body =  wmlDocumentEl.getBody();
   DocumentTraverser traverser = new DocumentTraverser();

   class DocumentTraverser  extends TraversalUtil.CallbackImpl {
      @Override
      public List<Object> apply(Object o) {
         if (o instanceof org.docx4j.wml.Text) {
         ....
         }
         return null;
      }
   }

Upvotes: 4

Views: 2854

Answers (2)

Paul Mikz Hipolito
Paul Mikz Hipolito

Reputation: 45

To access the embedded images in a .docx file, use the following steps:

◾If it's not already a .docx file, Open the file in Word 2007 and save the file as a Word Document (*.docx). ◾Change the file extension on the original file from .docx to .zip, as shown in Figure D.

Upvotes: 0

JasonPlutext
JasonPlutext

Reputation: 15878

For embedded (as opposed to external) images, the simplest approach is:

import java.io.FileOutputStream;
import java.util.Map.Entry;

import org.docx4j.openpackaging.packages.WordprocessingMLPackage;
import org.docx4j.openpackaging.parts.Part;
import org.docx4j.openpackaging.parts.PartName;
import org.docx4j.openpackaging.parts.WordprocessingML.BinaryPart;
import org.docx4j.openpackaging.parts.WordprocessingML.BinaryPartAbstractImage;

public class SaveImages  {

        public static void main(String[] args) throws Exception {

            WordprocessingMLPackage wordMLPackage = WordprocessingMLPackage.load(new java.io.File(inputfilepath));

            for (Entry<PartName, Part> entry : wordMLPackage.getParts().getParts().entrySet()) {

                if (entry.getValue() instanceof BinaryPartAbstractImage) {

                    FileOutputStream fos = new FileOutputStream( yourfile ); // TODO: you can get file extension from PartName, or part class.
                    ((BinaryPart)entry.getValue()).writeDataToOutputStream(fos);
                    fos.close();

                }


            }
        }

    }

If you care about the context of the images, you have to search for them in the relevant parts (eg MainDocumentPart, and your header/footer parts etc as required).

https://github.com/plutext/docx4j/blob/master/src/samples/docx4j/org/docx4j/samples/ImageConvertEmbeddedToLinked.java will give you a hint as to how to do that. Note that there are two different XML structures for images. The newer DrawingML XML, and the legacy VML.

Upvotes: 3

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