Removing metadata from PDF

Is there any way to remove the Modified / Created date from a PDF that was created by scanning paper into a scanner?  I know there are tools that will change the modified date that windows displays.. But if you goto properties of document it will still show the original and correct information.
GorapsI.T. ManagerAsked:
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Joe Winograd, Fellow&MVEDeveloperCommented:
Do these steps in Adobe Acrobat (the full Acrobat, not Reader):

Remove Hidden Information

It will open a panel with Results, where one of the items will be the Metadata:

Hidden Info Results
Click the Metadata, then click the Remove button in the frame above it:

Remove Metadata
It will give you this warning:

Remove warning
Click OK. Then do a Save or Save As to save the file with the Created and Modified dates removed.

In a test file, this is what Document Properties>Description looked like before hitting the Remove button:

Before Remove
This is what it looks like after Remove:

After Remove
Regards, Joe

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