Java Requires Chilkat v11.7.0+

Code Blocks and Code Spans in PDF to Markdown

See more PDF Text Extraction Examples

Demonstrates how monospaced text is converted by the "markdown" operation: a monospaced block becomes a fenced code block and a monospaced run inside a sentence becomes a code span. Set "code" to false to treat it as ordinary text. Java

import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    boolean success = false;

    //  This example requires the Chilkat API to have been previously unlocked.
    //  See Global Unlock Sample for sample code.

    //  The PDF used in this example is available at code_block.pdf

    CkPdf pdf = new CkPdf();
    success = pdf.LoadFile("qa_data/pdf/code_block.pdf");
    if (success == false) {
        System.out.println(pdf.lastErrorText());
        return;
        }

    CkJsonObject json = new CkJsonObject();
    CkJsonObject jsonOut = new CkJsonObject();

    success = pdf.ExtractText("markdown",json,jsonOut);
    if (success == false) {
        System.out.println(pdf.lastErrorText());
        return;
        }

    System.out.println("---- default (code: true) ----");
    System.out.println(jsonOut.stringOf("markdown"));

    json.UpdateBool("code",false);
    success = pdf.ExtractText("markdown",json,jsonOut);
    if (success == false) {
        System.out.println(pdf.lastErrorText());
        return;
        }

    System.out.println("---- code: false ----");
    System.out.println(jsonOut.stringOf("markdown"));

    //  Sample output:

    //  ---- default (code: true) ----
    //  <!-- page 1 -->
    //  
    //  # Extracting Text
    //  
    //  Load the PDF and call `ExtractText` with the operation and an options object. The result is returned as JSON:
    //  
    //  ```
    //  new Pdf pdf;
    //  success = pdf.LoadFile("report.pdf");
    //  new JsonObject json;
    //  new JsonObject jsonOut;
    //  success = pdf.ExtractText("text",json,jsonOut);
    //  println jsonOut.StringOf("text");
    //  ```
    //  
    //  An empty options object extracts every page with the default clean-up. Set `pages` to limit the extraction.
    //  ---- code: false ----
    //  <!-- page 1 -->
    //  
    //  # Extracting Text
    //  
    //  Load the PDF and call ExtractText with the operation and an options object. The result is returned as JSON:
    //  
    //  new Pdf pdf; success = pdf.LoadFile("report.pdf"); new JsonObject json; new JsonObject jsonOut; success = pdf.ExtractText("text",json,jsonOut); println jsonOut.StringOf("text");
    //  
    //  An empty options object extracts every page with the default clean-up. Set pages to limit the extraction.
  }
}