Features of GroupDocs.Redaction for .NET

Erase Metadata in POWERPOINT via .NET

Protect document data in POWERPOINT files with simple tools built for C#. Remove metadata in just a few steps.

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Clean Metadata from Powerpoint Documents

With GroupDocs.Redaction, your .NET apps can easily remove metadata from documents.

Start with a Redactor object and load your file.
Choose metadata fields to remove.
Apply redaction settings.
Export the final, cleaned document.

Sample redactions Copy

// Get rid of metadata in POWERPOINT

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

dotnet add package GroupDocs.Redaction

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Protect Documents with Redaction

GroupDocs.Redaction for .NET helps remove hidden content from documents so you can share them safely. Works with many formats and content types.

Remove Private Text

Find sensitive words or phrases and take them out of your document.

Mask Image Data

Use overlays to cover areas in images that need to stay hidden.

Delete Metadata

Clean metadata fields that might carry hidden information.

Clear Hidden Metadata Fields

This example guides you through removing embedded data like Author and Title from a POWERPOINT file.

C#

Download result Copy

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

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

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

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