Effortless DGN to AutoCAD PDF Export with Aspose.CAD for Java

Introduction

Welcome to this comprehensive tutorial on using Aspose.CAD for Java to export DGN files in AutoCAD format to PDF. If you’re looking to enhance your Java application’s capability to handle CAD files, Aspose.CAD is an excellent choice. In this tutorial, we’ll guide you through the process of exporting DGN files step by step.

Prerequisites

Before we dive into the tutorial, make sure you have the following prerequisites:

• Aspose.CAD Library: Ensure that you have the Aspose.CAD library for Java installed. You can download it here.
• Document Directory: Set up a document directory where your input and output files will be stored.

Import Packages

In your Java project, import the necessary packages to access Aspose.CAD functionalities:

import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.OutputStream;
import com.aspose.cad.Image;
import com.aspose.cad.fileformats.dgn.DgnImage;
import com.aspose.cad.imageoptions.CadRasterizationOptions;
import com.aspose.cad.imageoptions.PdfOptions;

Now, let’s break down the example code into multiple steps:

Step 1: Define File Paths

String dataDir = "Your Document Directory" + "ExportingDGN/";
String fileName = dataDir + "Nikon_D90_Camera.dgn";
String outFile  = dataDir + "Nikon_D90_Camera.pdf";

Make sure to replace “Your Document Directory” with the actual path where your files are located.

Step 2: Load DGN Image

DgnImage objImage = (DgnImage) Image.load(fileName);

Load the DGN file using Aspose.CAD.

Step 3: Set PDF Export Options

PdfOptions options = new PdfOptions();
CadRasterizationOptions vectorOptions = new CadRasterizationOptions();
vectorOptions.setPageWidth(1500);
vectorOptions.setPageHeight(1500);
vectorOptions.setAutomaticLayoutsScaling(true);
vectorOptions.setLayouts(new String[] { "1", "2", "3", "9" }); // Export specific views
options.setVectorRasterizationOptions(vectorOptions);

Define the PDF export options, including page dimensions and layout preferences.

Step 4: Save PDF File

objImage.save(outFile, options);

Save the exported PDF file.

Repeat these steps for any additional DGN files you want to convert. Congratulations! You’ve successfully exported DGN files to AutoCAD format in PDF using Aspose.CAD for Java.

Conclusion

In this tutorial, we explored how to leverage Aspose.CAD for Java to enhance your application’s CAD file handling capabilities. With easy-to-follow steps and code examples, you can now seamlessly export DGN files to AutoCAD format in PDF.

FAQ’s

Q1: Is Aspose.CAD compatible with all CAD file formats?

A1: Yes, Aspose.CAD supports a wide range of CAD formats, ensuring versatility in handling various file types.

Q2: Can I customize the PDF export settings?

A2: Absolutely. As shown in the tutorial, you can adjust options such as page dimensions and layouts to suit your requirements.

Q3: Where can I find additional support or assistance?

A3: Visit the Aspose.CAD forum for community support and discussions.

Q4: Is there a free trial available?

A4: Yes, you can access the free trial here.

Q5: How can I obtain a temporary license?

A5: Get a temporary license here.