How do I convert word file to jpg image using com and php

[Neerajfeb]

I want to make a php script when I insert doc file or pdf file in database.

At a time it generate very first image of word file or pdf.

I have seen an example related about it like:

<?php
// starting word
$word = new COM("word.application") or die("Unable to instantiate Word");
echo "Loaded Word, version {$word->Version}\n";
 
//bring it to front
$word->Visible = 1;
 
//open an empty document
$word->Documents->Add();
 
//do some weird stuff
$word->Selection->TypeText("This is a test...");
$word->Documents[1]->SaveAs("Useless test.doc");
 
//closing word
$word->Quit();
 
//free the object
$word = null;
?>
.this example is not working well for generate  doc file to jpg... 
 
but 
 
$powerpnt = new COM("powerpoint.application") or die("Unable to instantiate Powerpoint");
 
$presentation = $powerpnt->Presentations->Open(realpath($file), false, false, false) or die("Unable to open presentation");
 
foreach($presentation->Slides as $slide)
 
{
 
    $slideName = "Slide_" . $slide->SlideNumber;
 
    $exportFolder = realpath($uploadsFolder);
 
    $slide->Export($exportFolder."\\".$slideName.".jpg", "jpg", "600", "400");
 
}
 
$powerpnt->quit();
 
?>

This script can convert ppt to jpg image ..
So my question is that how to convert doc file to jpg> Like ppt to jpg image?

Please help me.

Thanks