Section:

CAD2PDF

Sample C# code demonstrates how to use the Apryse CAD module for direct, high-quality conversion from DWG, DXF, DGN, DWF, and RVT to PDF. Learn more about our Server SDK and PDF Conversion Library.

1//---------------------------------------------------------------------------------------
2// Copyright (c) 2001-2024 by Apryse Software Inc. All Rights Reserved.
3// Consult legal.txt regarding legal and license information.     
4//---------------------------------------------------------------------------------------
5
6using System;
7using System.Drawing;
8using System.Drawing.Imaging;
9using System.Runtime.InteropServices;
10
11using pdftron;
12using pdftron.Common;
13using pdftron.PDF;
14using pdftron.SDF;
15
16namespace CAD2PDFTestCS
17{
18    /// <summary>
19    //---------------------------------------------------------------------------------------
20    // The following sample illustrates how to convert CAD documents (such as dwg, dgn, rvt, 
21    // dxf, dwf) to pdf 
22    //---------------------------------------------------------------------------------------
23    /// </summary>
24    class Class1
25    {
26        private static pdftron.PDFNetLoader pdfNetLoader = pdftron.PDFNetLoader.Instance();
27        static Class1() {}
28
29        /// <summary>
30        /// Check file extension
31        /// </summary>
32        static bool IsRVTFile(string input_file_name)
33        {
34            bool rvt_input = false;
35            if (input_file_name.Length > 2)
36            {
37                if (input_file_name.Substring(input_file_name.Length - 3, 3) == "rvt")
38                {
39                    rvt_input = true;
40                }
41            }
42            return rvt_input;
43        }
44
45        /// <summary>
46        /// The main entry point for the application.
47        /// </summary>
48        static void Main(string[] args)
49        {
50            // The first step in every application using PDFNet is to initialize the 
51            // library and set the path to common PDF resources. The library is usually 
52            // initialized only once, but calling Initialize() multiple times is also fine.
53            PDFNet.Initialize(PDFTronLicense.Key);
54            PDFNet.AddResourceSearchPath("../../../../../Lib/");
55            if (!CADModule.IsModuleAvailable())
56            {
57                Console.WriteLine();
58                Console.WriteLine("Unable to run CAD2PDFTest: Apryse SDK CAD module not available.");
59                Console.WriteLine("---------------------------------------------------------------");
60                Console.WriteLine("The CAD module is an optional add-on, available for download");
61                Console.WriteLine("at http://www.pdftron.com/. If you have already downloaded this");
62                Console.WriteLine("module, ensure that the SDK is able to find the required files");
63                Console.WriteLine("using the PDFNet::AddResourceSearchPath() function.");
64                Console.WriteLine();
65            }
66
67            // Relative path to the folder containing test files.
68            string input_path =  "../../../../TestFiles/CAD/";
69            string output_path = "../../../../TestFiles/Output/";
70
71            string input_file_name = "construction drawings color-28.05.18.dwg";
72            string output_file_name = "construction drawings color-28.05.18.pdf";
73
74            if (args.Length != 0)
75            {
76                input_file_name = args[0];
77                output_file_name = input_file_name + ".pdf";
78            }
79
80            Console.WriteLine("Example cad:");
81            try
82            {
83                using (PDFDoc pdfdoc = new PDFDoc())
84                {
85                    if (IsRVTFile(input_file_name))
86                    {
87                        CADConvertOptions opts = new CADConvertOptions();
88                        opts.SetPageWidth(800);
89                        opts.SetPageHeight(600);
90                        opts.SetRasterDPI(150);
91
92                        pdftron.PDF.Convert.FromCAD(pdfdoc, input_path + input_file_name, opts);
93                    }
94                    else
95                    {
96                        pdftron.PDF.Convert.FromCAD(pdfdoc, input_path + input_file_name, null);
97                    }
98                    pdfdoc.Save(output_path + output_file_name, SDFDoc.SaveOptions.e_remove_unused);
99                }
100
101                Console.WriteLine("Done.");
102            }
103            catch (PDFNetException e)
104            {
105                Console.WriteLine(e.Message);
106            }
107            PDFNet.Terminate();
108        }
109    }
110}

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