Convert JSON to PDF in Java | https://blog.aspose.com/2021/05/22/convert-json-to-pdf-using-java/

json-to-pdf.java

// create a blank Workbook object
Workbook workbook = new Workbook();

// access default empty worksheet
Worksheet worksheet = workbook.getWorksheets().get(0);

// read JSON file
String fileName = "Data.json";
String content = new String(Files.readAllBytes(Paths.get(fileName)));

// set JsonLayoutOptions for formatting
JsonLayoutOptions layoutOptions = new JsonLayoutOptions();
layoutOptions.setArrayAsTable(true);

// import JSON data to default worksheet starting at cell A1
JsonUtility.importData(content, worksheet.getCells(), 0, 0, layoutOptions);

// convert imported JSON to PDF
workbook.save("output.pdf", SaveFormat.AUTO);

Read the article: https://blog.aspose.com/2021/05/22/convert-json-to-pdf-using-java/