GroupDocs.Redaction for .NET Core Functions

Remove Metadata in PPTX Using .NET Tools

Hide sensitive metadata in PPTX files using C#. Ideal for business and personal privacy.

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Erase Hidden Metadata in Pptx Files

GroupDocs.Redaction helps your .NET solutions clean up hidden data easily.

Create a Redactor instance and load the Pptx file.
Configure redaction rules for metadata fields.
Apply redaction to remove the data.
Save your redacted file.

Sample redactions Copy

// Delete metadata in PPTX

// Open the file using Redactor
using (Redactor redactor  = new Redactor("input.pptx"))
{
    // Set redaction for metadata cleanup
    var redaction = new EraseMetadataRedaction(MetadataFilters.All);
    
    // Apply and save file
    redactor.Apply(redaction);
    redactor.Save();
}

dotnet add package GroupDocs.Redaction

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Extra Redaction Tools for Any File

GroupDocs.Redaction for .NET supports redacting content across different formats. Make sure your data is private and your files are clean.

Find and Remove Text

Quickly delete personal text entries from your files.

Cover Images with Overlays

Hide image sections that should not be visible.

Delete Metadata

Wipe hidden fields like author, title, and more to stay safe.

Clean Up Metadata Fields

This example shows how to clear metadata from a PPTX file safely.

C#

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//  Import your PPTX file
using (Redactor redactor  = new Redactor("source.pptx"))
{
    // Redact Author field
    MetadataSearchRedaction redactionAuthor = 
        new MetadataSearchRedaction(@"[A-Za-z0-9 ]+", "GroupDocs Company")
    {
        Filter = MetadataFilters.Author
    };

    // Redact Title field
    MetadataSearchRedaction redactionTitle = 
        new MetadataSearchRedaction(@"[A-Za-z0-9 ]+", "GroupDocs.Redaction Usage")
    {
        Filter = MetadataFilters.Title
    };

    // Process redaction
    var redactions = new MetadataSearchRedaction[] { redactionAuthor, redactionTitle };
    redactor.Apply(redactions);

    // Export the redacted file
    var saveOptions = new SaveOptions() { AddSuffix = true, RasterizeToPDF = false };
    var outputPath = redactor.Save(saveOptions);
}