Image Rotate & Flip
How to Flip an Image Horizontally or Vertically in .NET

How to Flip an Image Horizontally or Vertically in .NET

Flipping (mirroring) images is essential for design, scanning corrections, and creative effects. Aspose.Imaging for .NET lets you flip any supported image horizontally or vertically in just a few lines of code.

Real-World Problem

Scanned documents or photos can appear reversed, or designers may need mirrored images for effects and layouts. Manual flipping is tedious—automation is best.

Solution Overview

Use the RotateFlip method with the appropriate RotateFlipType to instantly mirror images horizontally (FlipX) or vertically (FlipY).

Prerequisites

  1. Visual Studio 2019 or later
  2. .NET 6.0 or later (or .NET Framework 4.6.2+)
  3. Aspose.Imaging for .NET from NuGet
  4. Image file (JPEG, PNG, BMP, etc.)
PM> Install-Package Aspose.Imaging

Step-by-Step Implementation

Step 1: Flip an Image Horizontally (Mirror X) 

using Aspose.Imaging;
using Aspose.Imaging.ImageOptions;

string inputPath = "./input/photo.jpg";
string outputFlipX = "./output/photo_flipx.jpg";

using (var image = Image.Load(inputPath))
{
    image.RotateFlip(RotateFlipType.RotateNoneFlipX);
    image.Save(outputFlipX, new JpegOptions { Quality = 90 });
}

Step 2: Flip an Image Vertically (Mirror Y) 

string outputFlipY = "./output/photo_flipy.jpg";

using (var image = Image.Load(inputPath))
{
    image.RotateFlip(RotateFlipType.RotateNoneFlipY);
    image.Save(outputFlipY, new JpegOptions { Quality = 90 });
}

Step 3: Review and Use the Results

Preview outputs to confirm proper mirroring for your workflow.

Use Cases and Applications

  • Correcting reversed scans or photos
  • Creating mirrored effects in graphic design
  • Preparing images for booklets, print, or creative layouts

Common Challenges and Solutions

Wrong flip direction: Try both FlipX and FlipY to see which is needed for your case.

Need to rotate and flip: Combine with rotation using other RotateFlipType values (see next article).

Batch processing: Loop through folders and flip all images as needed.

Best Practices

  • Archive original files before editing
  • Document flip direction for consistent processing
  • Use flipping as part of automated scan/design workflows

FAQ

Q: Can I flip PNG, TIFF, or BMP images? A: Yes—Aspose.Imaging supports all major raster formats.

Q: Can I flip all images in a folder automatically? A: Yes—wrap this code in a loop and apply to every file as shown in batch examples.

Q: Can I flip and rotate at the same time? A: Yes—combine actions with RotateFlipType values (see next articles).

Conclusion

Flipping images is fast and reliable with Aspose.Imaging for .NET. For advanced workflows, see the Aspose.Imaging for .NET API Reference .

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