# Redact Text in PowerPoint Files on Windows, Linux, and macOS

> APIs for finding and redacting text in PPT, PPTX, and ODP presentations.

Source: https://products.aspose.com/slides/redaction/
Updated: 2026-07-30



### [Aspose.Slides for .NET](/slides/net/redaction/)

How to redact text in presentations with C#.

### [Aspose.Slides for Java](/slides/java/redaction/)

How to redact text in presentations with Java.

### [Aspose.Slides for C++](/slides/cpp/redaction/)

How to redact text in presentations with C++.

### [Aspose.Slides for Python via .NET](/slides/python-net/redaction/)

How to redact text in presentations with Python via .NET.

## FAQ

### Does redaction remove the text, or just cover it?

Replacing the text removes it from the file. Drawing a black rectangle over it does not — the text stays underneath and can be recovered. If the point is that the content is gone, replace it and save.

### Can I redact text that appears in tables, notes and grouped shapes?

Yes, but you must walk them explicitly: text lives in shapes, table cells, grouped shapes and notes slides, and a pass over top-level shapes alone will miss the rest.

### How do I make sure a redacted presentation cannot be reverted?

Save it as a new file and discard the original. Presentation formats retain revision and undo-related data, so editing in place is not the same as producing a clean copy.

### Should I redact before or after converting to PDF?

Before. Redact the presentation, then convert — that way the removed text never reaches the PDF's text layer, where it would otherwise remain selectable.