C# Word to PDF Conversion performance

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Hello,

im able to Convert a Doc file to PDF.
But the Way i am doing it is very slow, which makes it nearly unusable.
Im doing it the following way:

C#

wordDocument = appWord.Documents.Open(path, ReadOnly: false, Visible: false);
wordDocument.ExportAsFixedFormat(System.IO.Path.ChangeExtension(path, ".PDF"), WdExportFormat.wdExportFormatPDF, false, WdExportOptimizeFor.wdExportOptimizeForOnScreen,
                                                                WdExportRange.wdExportAllDocument, 1, 1, WdExportItem.wdExportDocumentContent, true, true,
                                                                WdExportCreateBookmarks.wdExportCreateHeadingBookmarks, true, true, false, ref oMissing);
wordDocument.Close(SaveChanges: false);

Posted 21-Sep-15 5:11am

Ben Denger

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Whisortates 27-Oct-15 4:37am

Generally speaking Microsoft's word automation in C# can yield a rather bad performances. This is because you're basically running the whole application (MS Word) and calling its functionalities.
Nevertheless you should check out that link, it is a comparison of word automation vs this C# library for word files. Also here is an article that demonstrates how to convert the Word document into a PDF in C# with it.

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Dave Kreskowiak · Answer 1 · 2015-09-21T06:09:00

Solution 1

There is no way to speed that up. The operation is completely out of your control.

You can TRY other PDF libraries, such as CutePDF and "printing" the word document to a PDF file, but you'll likely end up with the same problem.

Posted 21-Sep-15 6:09am

Dave Kreskowiak