c# - Microsoft.Office.Interop.Excel for Office 2007 -

i want try windows form application converts office file (excel, word, powerpoint) pdf file. client's pc not install visual studio , office version 2007. application uses microsoft.office.iterop.excel.dll covert pdf format. dll file cannot found on client's pc , error has occurred following.

system.augumentexception: value not fall within expected range. @ microsoft.office.interop.excel._workbook.exportasfixedfromat(.......) 

how can solve problem?

my code following

public bool exportworkbooktopdf(string workbookpath, string outputpath)         {             // if either required string null or empty, stop , bail out             if (string.isnullorempty(workbookpath) || string.isnullorempty(outputpath))             {                 return false;             }              // create com objects             microsoft.office.interop.excel.application excelapplication;             microsoft.office.interop.excel.workbook excelworkbook;              // create new instance of excel             excelapplication = new microsoft.office.interop.excel.application();              // make process invisible user             excelapplication.screenupdating = false;              // make process silent             excelapplication.displayalerts = false;              // open workbook wish export pdf             excelworkbook = excelapplication.workbooks.open(workbookpath);              messagebox.show(workbookpath);             // if workbook failed open, stop, clean up, , bail out             if (excelworkbook == null)             {                 excelapplication.quit();                  excelapplication = null;                 excelworkbook = null;                 messagebox.show("in null");                 return false;             }              var exportsuccessful = true;             try             {                 // call excel's native export function (valid in office 2007 , office 2010, afaik)                 excelworkbook.exportasfixedformat(microsoft.office.interop.excel.xlfixedformattype.xltypepdf, outputpath);             }             catch (system.exception ex)             {                 messagebox.show(ex.message);                 // mark export failed return value...                 exportsuccessful = false;                  // exceptions here, if wish...                 // messagebox.show...                     }                         {                 // close workbook, quit excel, , clean regardless of results...                 excelworkbook.close();                 excelapplication.quit();                  excelapplication = null;                 excelworkbook = null;             }              // can use following method automatically open pdf after export if wish             // make sure file exists first...             if (system.io.file.exists(outputpath))             {                 messagebox.show(outputpath);                 system.diagnostics.process.start(outputpath);             }              return exportsuccessful;         } 

as said in comments, each client needs install 2007 microsoft office add-in: microsoft save pdf. doesn't matter if on windows 8.1 or have pdf reader installed. need add-in write pdfs office 2007. (you don't need add-in office 2010 or 2013.)