Perform a check that there are printers installed. If there are not, then don't attempt to convert as office will complain.

Also checks the /printer and /fallback_printer names are installed

Author: vittala

OfficeToPDF/Program.cs

@@ -21,6 +21,7 @@
 using System.Collections;
 using System.Collections.Generic;
 using System.Diagnostics;
+using System.Drawing.Printing;
 using System.IO;
 using System.Reflection;
 using System.Security.AccessControl;
@@ -48,7 +49,8 @@ public enum ExitCode : int
         WorksheetNotFound = 256,
         EmptyWorksheet = 512,
         PDFProtectedDocument = 1024,
-        ApplicationError = 2048
+        ApplicationError = 2048,
+        NoPrinters = 4096
     }
 
     public enum MergeMode : int
@@ -135,6 +137,14 @@ static void Main(string[] args)
             options["pdf_restrict_accessibility_extraction"] = false;
             options["pdf_restrict_full_quality"] = false;
 
+            // We need some printers to keep office happy
+            Dictionary<string,bool> installedPrinters = GetInstalledPrinters();
+            if (installedPrinters.Count <= 0)
+            {
+                Console.WriteLine("There are no installed printers, so conversion can not proceed");
+                Environment.Exit((int)(ExitCode.Failed | ExitCode.NoPrinters));
+            }
+
             // Strings used in error messages for different options
             var optionNameMap = new Dictionary<string, string>()
             {
@@ -391,11 +401,20 @@ static void Main(string[] args)
                             case "printer":
                             case "fallback_printer":
                                 // Only accept the next option if there are enough options
+                                string optname = itemMatch.Groups[1].Value.ToLower();
                                 if (argIdx + 2 < args.Length)
                                 {
-                                    options[itemMatch.Groups[1].Value.ToLower()] = args[argIdx + 1];
+                                    options[optname] = args[argIdx + 1];
                                     argIdx++;
                                 }
+                                if (optname.Equals("printer") || optname.Equals("fallback_printer"))
+                                {
+                                    if (!installedPrinters.ContainsKey(((string)options[optname]).ToLowerInvariant())) {
+                                        // The requested printer did not exists
+                                        Console.WriteLine("The printer \"{0}\" is not installed", options[optname]);
+                                        Environment.Exit((int)(ExitCode.Failed | ExitCode.InvalidArguments));
+                                    }
+                                }
                                 break;
                             case "screen":
                                 options["print"] = false;
@@ -988,6 +1007,16 @@ static PdfDocument ReadExistingPDFDocument(String filename, String generatedFile
             return dstDoc;
         }
 
+        private static Dictionary<string, bool> GetInstalledPrinters()
+        {
+            Dictionary<string, bool> printers = new Dictionary<string, bool>();
+            foreach (string name in PrinterSettings.InstalledPrinters)
+            {
+                printers[name.ToLowerInvariant()] = true;
+            }
+            return printers;
+        }
+
         static void ShowHelp()
         {
             Console.Write(@"Converts Office documents to PDF from the command line.

OfficeToPDF/Properties/AssemblyInfo.cs

@@ -31,5 +31,5 @@
 // You can specify all the values or you can default the Build and Revision Numbers 
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("1.8.20.0")]
-[assembly: AssemblyFileVersion("1.8.20.0")]
+[assembly: AssemblyVersion("1.8.21.0")]
+[assembly: AssemblyFileVersion("1.8.21.0")]

README.md

@@ -92,10 +92,13 @@ The following optional switches can be used:
 | /word_header_dist _pts_    | the distance (in points) from the header to the top of the page |
 | /word_footer_dist _pts_    | the distance (in points) from the footer to the bottom of the page |
 | /word_field_quick_update   | perform a fast update of fields in Word before conversion |
+| /word_fix_table_columns    | update table column widths to match table heading column widths |
 | /word_keep_history         | do not clear Word's recent files list |
 | /word_max_pages _pages_    | do not attempt conversion of a Word document if it has more than this number of _pages_ |
 | /word_no_field_update      | do not update fields when creating the PDF |
 | /word_ref_fonts            | when fonts are not available, a reference to the font is used in the generated PDF rather than a bitmapped version. The default is for a bitmap of the text to be used |
+| /fallback_printer <name>   | print the document to postscript printer <name> for conversion when the main conversion routine fails. Requires Ghostscript to be installed |
+| /printer <name>            | print the document to postscript printer <name> for conversion. Requires Ghostscript to be installed |
 | /pdf_clean_meta _type_     | allows for some meta-data to be removed from the generated PDF<br>_type_ can be:<ul><li>basic - removes author, keywords, creator and subject</li><li>full - removes all that basic removes and also the title</li></ul> |
 | /pdf_layout _layout_       | controls how the pages layout in Acrobat Reader<br>_layout_ can be one of the following values:<ul><li>onecol - show pages as a single scrolling column</li><li>single - show pages one at a time</li><li>twocolleft - show pages in two columns, with odd-numbered pages on the left</li><li>twocolright - show pages in two columns, with odd-numbered pages on the right</li><li>twopageleft - show pages two at a time, with odd-numbered pages on the left</li><li>twopageright - show pages two at a time, with odd-numbered pages on the right</li></ul> |
 | /pdf_page_mode _mode_      | controls how the PDF will open with Acrobat Reader<br>_mode_ can be one of the following values:<ul><li>full - the PDF will open in fullscreen mode</li><li>bookmarks - the PDF will open with the bookmarks visible</li><li>thumbs - the PDF will open with the thumbnail view visible</li><li>none - the PDF will open without the navigation bar visible</li></ul> |
@@ -135,6 +138,8 @@ so bitwise operations can test for multiple errors.
 256 - The requested worksheet was not found
 512 - Unable to use an empty worksheet
 1024 - Unable to modify or open a protected PDF
+2048 - Raised when there is a problem calling an Office application
+4096 - There are no printers installed, so Office conversion can not proceed
 ```
 
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