Convert Excel to PDF using JavaScript

0 votes

How can I convert Excel documents (files) to PDF in an automated fashion? I am trying to adapt the solution found here to Excel. So far I have this:

var fso = new ActiveXObject("Scripting.FileSystemObject");
var docPath = WScript.Arguments(0);
docPath = fso.GetAbsolutePathName(docPath);

var pdfPath = docPath.replace(/\.xls[^.]*$/, ".pdf");
var objExcel = null;

try
{
    WScript.Echo("Saving '" + docPath + "' as '" + pdfPath + "'...");

    objExcel = new ActiveXObject("Excel.Application");
    objExcel.Visible = false;

    var objExcel = objExcel.Workbooks.Open(docPath);

    var wdFormatPdf = 17;
    objExcel.SaveAs(pdfPath, wdFormatPdf);
    objExcel.Close();

    WScript.Echo("Done.");
}
finally
{
    if (objExcel != null)
    {
        objExcel.Quit();
    }
}

Output:

Saving 'somefile.xlsx' as 'somefile.pdf'...
Done.
..\SaveXLSXAsPDF.js(27, 9) (null): The object invoked has disconnected from its clients.

An erroneous PDF file is created, and it will not open in a reader. Perhaps format 17 isn't the best choice for Excel, I'm thinking. Does anyone have the correct information or know how to make this work?

Oct 9, 2022 in Others by Kithuzzz
• 38,010 points
3,123 views

1 answer to this question.

0 votes

You're clobbering objExcel on line 15:

var objExcel = objExcel.Workbooks.Open(docPath);

Those lines of code need to use a different variable, e.g.:

var objWorkbook = objExcel.Workbooks.Open(docPath);

var wdFormatPdf = 57;
objWorkbook.SaveAs(pdfPath, wdFormatPdf);
objWorkbook.Close();
answered Oct 9, 2022 by narikkadan
• 63,700 points

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