Not able to convert word document to pdf size(50 MB- 200 MB)

bhushan jat

I have used below code:-

Microsoft.Office.Interop.Word.Application msWordDoc = null;

Microsoft.Office.Interop.Word.Document doc = null;

doc = msWordDoc.Documents.Open(ref originalDocPath, ref oMissing, true,

ref oMissing, ref oMissing, ref oMissing, ref oMissing,

ref oMissing, ref oMissing, ref oMissing, ref oMissing,
ref oMissing,ref oMissing, ref oMissing, ref oMissing,
ref oMissing);

doc.SaveAs(ref pdfPath,ref fileFormat, ref oMissing, ref oMissing,

ref oMissing, ref oMissing, ref oMissing, ref oMissing,

ref oMissing, ref oMissing, ref oMissing, ref oMissing);

But this code doesn't convert big files.

3 Replies

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Jonathan Sterling11y ago
I see you are using a word's automation in C#, I've done this in the past but instead of the SaveAs method I used ExportAsFixedFormat, like this:
var application = new Application();
var document = application.Documents.Open(FileName: @"C:\Sample.docx");
document.ExportAsFixedFormat(OutputFileName: @"C:\Sample.pdf", ExportFormat: WdExportFormat.wdExportFormatPDF);
Also if interested as an alternative you can use this word's library for C#. Here is an article that shows how you can create a new PDF file with C# code.
Also in order to achieve a C# conversion of an existing word document to PDF you would do just the following:
DocumentModel.Load(@"C:\Sample.docx").Save(@"C:\Sample.pdf");
bhushan jat11y ago
Thank you for reply. But can you provide the dll of spire.doc. I need to regiter???
Alex Smith11y ago
Try this method to convert Word to PDF in C# which is based on .NET Word component.

using System;
using Spire.Doc;
using Spire.Doc.Documents;

namespace DoctoPDF
{
class toPDF
{
static void Main(string[] args)
{
//Load Document
Document document = new Document();
document.LoadFromFile(@"E:\work\documents\TestSample.docx");

//Convert Word to PDF
document.SaveToFile("toPDF.PDF", FileFormat.PDF);

//Launch Document
System.Diagnostics.Process.Start("toPDF.PDF");
}
}
}