Extract Text or Images from OneNote Documents using Java

ExtractTextOrImagesFromOneNote_Java.md

Learn how to extract text or images from OneNote documents using Java: https://blog.aspose.com/2022/03/25/extract-text-or-images-from-onenote-documents-using-java/

The following topics are covered in this article:

1. Java API to Extract Text and Images from OneNote
2. Extract All the Text from OneNote using Java
3. Get Text from Specific Pages of OneNote in Java
4. Extract Images from OneNote using Java

ExtractTextOrImagesFromOneNote_Java_ExtractImages.java

// This code example demonstrates how to Extract images from OneNode document.
// Load the document into Aspose.Note
Document doc = new Document("D:\\Files\\Note\\Sample1.one");

// Get all images
List<Image> list = doc.getChildNodes(Image.class);
System.out.printf("Total Images: %s\n\n", list.size());

// Traverse the list
for (int i = 0; i < list.size(); i++) {
  Image image = list.get(i);

  // Show image properties
  System.out.println("Width: " + image.getWidth());
  System.out.println("Height: " + image.getHeight());
  System.out.println("OriginalWidth: " + image.getOriginalWidth());
  System.out.println("OriginalHeight: " + image.getOriginalHeight());
  System.out.println("FileName: " + image.getFileName());
  System.out.println("LastModifiedTime: " + image.getLastModifiedTime());

  String outputFile = "ExtractImages_out" + i + "_" + image.getFileName();

  // Save the image
  byte[] buffer = image.getBytes();
  Files.write(Paths.get("D:\\Files\\Note\\Images\\" + outputFile), buffer);
  System.out.printf("File saved: %s\n", outputFile);
}

ExtractTextOrImagesFromOneNote_Java_ExtractPagesText.java

// This code example demonstrates how to Extract text from pages of a OneNode document.
// Load the document into Aspose.Note.
Document doc = new Document("D:\\Files\\Note\\Sample1.one");

// Get list of page nodes
List<Page> pages = doc.getChildNodes(Page.class);

for (Page p : pages) {
  System.out.println("---- Page Started Here ----");

  List<RichText> textNodes = (List<RichText>) p.getChildNodes(RichText.class);

  for (RichText richText : textNodes) {
    if(!richText.getText().isBlank())
      System.out.println(richText.getText().toString());
  }

  System.out.println("---- Page Ended Here ----");
  System.out.println();
}

ExtractTextOrImagesFromOneNote_Java_ExtractSpecificPageText.java

// This code example demonstrates how to Extract text from a specific page of a OneNode document.
// Load the document into Aspose.Note
Document doc = new Document("D:\\Files\\Note\\Sample1.one");

// Get list of page nodes
List<Page> pages = doc.getChildNodes(Page.class);

// Get page by index
Page page = pages.get(0);

// Get text of the page
List<RichText> textNodes = (List<RichText>) page.getChildNodes(RichText.class);

// Show text
for (RichText richText : textNodes) {
  if(!richText.getText().isBlank())
    System.out.println(richText.getText().toString());
}

ExtractTextOrImagesFromOneNote_Java_ExtractText.java

// This code example demonstrates how to Extract all the text from OneNode document.
// Load the document into Aspose.Note.
Document oneFile = new Document("D:\\Files\\Note\\Sample1.one");

// Retrieve text
List<RichText> textNodes = (List<RichText>) oneFile.getChildNodes(RichText.class);

for (RichText richText : textNodes) {
  if(!richText.getText().isBlank())
    System.out.println(richText.getText().toString());
}