OfficeToPDF

1//
2// Copyright (c) 2001-2020 by PDFTron Systems Inc. All Rights Reserved.
3//
4
5using System;
6using System.IO;
7using System.Threading.Tasks;
8using Windows.Foundation;
9
10using pdftron.PDF;
11using pdftron.SDF;
12
13using pdftron.Common;
14using PDFNetUniversalSamples.ViewModels;
15
16namespace PDFNetSamples
17{
18    /// <summary>
19    ///---------------------------------------------------------------------------------------
20    /// The following sample illustrates how to use the PDF::Convert utility class to convert 
21    /// .docx files to PDF
22    ///
23    /// This conversion is performed entirely within the PDFNet and has *no* external or
24    /// system dependencies
25    ///
26    /// Please contact us if you have any questions.	
27    ///---------------------------------------------------------------------------------------
28    /// </summary>
29
30    public sealed class OfficeToPDFTest : Sample
31    {
32        public OfficeToPDFTest() :
33            base("OfficeToPDF", "The following sample illustrates how to use the PDF::Convert utility class to convert .docx files to PDF")
34        {
35        }
36
37        public override IAsyncAction RunAsync()
38        {
39            return Task.Run(new System.Action(async () =>
40            {
41                WriteLine("--------------------------------");
42                WriteLine("Starting OfficeToPDF Test...");
43                WriteLine("--------------------------------\n");
44
45                try
46                {
47                    // first the one-line conversion method
48                    await SimpleConvert("Fishermen.docx", "Fishermen.pdf");
49
50                    // then the more flexible line-by-line conversion API
51                    await FlexibleConvert("the_rime_of_the_ancient_mariner.docx", "the_rime_of_the_ancient_mariner.pdf");
52
53                    // conversion of RTL content
54                    await FlexibleConvert("factsheet_Arabic.docx", "factsheet_Arabic.pdf");
55                }
56                catch (Exception e)
57                {
58                    WriteLine("Unrecognized Exception: " + e.Message);
59                }
60
61                WriteLine("--------------------------------");
62                WriteLine("Done OfficeToPDF Test.");
63                WriteLine("--------------------------------\n");
64
65            })).AsAsyncAction();
66        }
67
68        async Task<bool> SimpleConvert(String input_filename, String output_filename)
69        {
70            // Make sure all files exist
71            if (!File.Exists(Path.Combine(InputPath, input_filename)))
72            {
73                WriteLine("File: " + input_filename + " not found!");
74                return false;
75            }
76
77                // Start with a PDFDoc (the conversion destination)
78                using (PDFDoc doc = new PDFDoc())
79            {
80                // perform the conversion with no optional parameters
81                pdftron.PDF.Convert.OfficeToPDF(doc, Path.Combine(InputPath, input_filename), null);
82
83                // save the result
84                await doc.SaveAsync(Path.Combine(OutputPath, output_filename), SDFDocSaveOptions.e_linearized);
85
86                WriteLine("Saved " + output_filename);
87
88                await AddFileToOutputList(Path.Combine(OutputPath, output_filename));
89
90                return true;
91            }
92        }
93
94        async Task<bool> FlexibleConvert(String input_filename, String output_filename)
95        {
96            // Make sure all files exist
97            if (!File.Exists(Path.Combine(InputPath,input_filename)))
98            {                
99                WriteLine("File: " + input_filename + " not found!");
100                return false;
101            }
102
103            // Start with a PDFDoc (the conversion destination)
104            using (PDFDoc doc = new PDFDoc())
105            {
106                // Instanciate convertion options
107                OfficeToPDFOptions options = new OfficeToPDFOptions();
108
109                // Smart Substitutions requires a plugin file, here we set the path to it 
110                options.SetSmartSubstitutionPluginPath(
111                    System.IO.Path.Combine(Windows.ApplicationModel.Package.Current.InstalledLocation.Path, "Resources"));
112                
113                // create a conversion object -- this sets things up but does not yet
114                // perform any conversion logic.
115                // in a multithreaded environment, this object can be used to monitor
116                // the conversion progress and potentially cancel it as well
117                DocumentConversion conversion = 
118                    pdftron.PDF.Convert.StreamingPDFConversion(doc, Path.Combine(InputPath, input_filename), options);
119
120                // actually perform the conversion
121                // this particular method will not throw on conversion failure, but will
122                // return an error status instead
123                if (conversion.TryConvert() == DocumentConversionResult.e_document_conversion_success)
124                {
125                    var num_warnings = conversion.GetNumWarnings();
126
127                    // print information about the conversion 
128                    for (uint i = 0; i < num_warnings; ++i)
129                    {
130                        WriteLine("Warning: " + conversion.GetWarningString(i));
131                    }
132
133                    // save the result
134                    await doc.SaveAsync(Path.Combine(OutputPath, output_filename), SDFDocSaveOptions.e_linearized);
135
136                    WriteLine("Saved " + output_filename);
137
138                    await AddFileToOutputList(Path.Combine(OutputPath, output_filename));
139
140                    return true;
141                }
142
143                return false;
144            }
145        }
146    }
147}