Green Box when using Mender to add Image

Aspose.PDF Product Family
,
1

I am using the following code to pass in an image in the form of byte[] and add it to the end of a PDF. Adding the image works when I do not use compression methods. If I use this code I get a green box on the page the same size as what the image would be:

public ResultsReturn AppendJPGASP(byte[] data, int width, int pgNbr, string outputFile)
{
ResultsReturn results = new ResultsReturn();
try
{
Stream ms = new MemoryStream();
using (Stream s = new MemoryStream(data))
{
Document document = new Document(outputFile);
var page = document.Pages.Add();
page.SetPageSize(Aspose.Pdf.PageSize.PageLetter.Width, Aspose.Pdf.PageSize.PageLetter.Height);
Aspose.Imaging.ImageOptions.JpegOptions options = new Aspose.Imaging.ImageOptions.JpegOptions
{
Quality = 75,
CompressionType = Aspose.Imaging.FileFormats.Jpeg.JpegCompressionMode.Progressive
};
options.Source = new Aspose.Imaging.Sources.StreamSource(s);

        using (Aspose.Imaging.Image image = Aspose.Imaging.Image.Create(options, 540, 500))
        {
            //do some image processing
            image.Save(ms);
        }

        // Create PdfFileMend object
        var mender = new Aspose.Pdf.Facades.PdfFileMend(document);
        ms.Position = 0;
        // Add image to the first page using the mender
        mender.AddImage(ms, pgNbr, 0, 0, (float)page.CropBox.Width, (float)page.CropBox.Height);
        document.Save(outputFile);
    }
    results.Success = true;
}
catch (Exception ex)
{
    results.Success = false;
    results.Exception = ex;
    results.ErrorMessage = ex.Message;
}
return results;

}

2

@ctenney

Cause

The issue of seeing a green box instead of the expected image when using compression methods likely stems from how the image is being processed or saved. When using certain compression settings, the image data may not be correctly interpreted, leading to rendering issues in the PDF.

Solution

To resolve this, you can try adjusting the image compression settings or ensuring that the image is properly saved before adding it to the PDF. Here are a few steps you can take:

  1. Check Image Quality: Make sure the quality setting is appropriate. A lower quality might lead to issues with rendering.
  2. Use Different Compression Types: Experiment with different compression types to see if one works better than the others.
  3. Ensure Proper Image Format: Make sure the image format is compatible with the PDF rendering process.

Code

Here’s a modified version of your code that includes a few adjustments to the image processing:

public ResultsReturn AppendJPGASP(byte[] data, int width, int pgNbr, string outputFile)
{
    ResultsReturn results = new ResultsReturn();
    try
    {
        using (Stream s = new MemoryStream(data))
        {
            Document document = new Document(outputFile);
            var page = document.Pages.Add();
            page.SetPageSize(Aspose.Pdf.PageSize.PageLetter.Width, Aspose.Pdf.PageSize.PageLetter.Height);
            
            Aspose.Imaging.ImageOptions.JpegOptions options = new Aspose.Imaging.ImageOptions.JpegOptions
            {
                Quality = 90, // Adjust quality as needed
                CompressionType = Aspose.Imaging.FileFormats.Jpeg.JpegCompressionMode.Standard // Try standard compression
            };
            options.Source = new Aspose.Imaging.Sources.StreamSource(s);

            using (Aspose.Imaging.Image image = Aspose.Imaging.Image.Load(options))
            {
                using (MemoryStream ms = new MemoryStream())
                {
                    image.Save(ms);
                    ms.Position = 0;

                    // Create PdfFileMend object
                    var mender = new Aspose.Pdf.Facades.PdfFileMend(document);
                    mender.AddImage(ms, pgNbr, 0, 0, (float)page.CropBox.Width, (float)page.CropBox.Height);
                }
            }
            document.Save(outputFile);
        }
        results.Success = true;
    }
    catch (Exception ex)
    {
        results.Success = false;
        results.Exception = ex;
        results.ErrorMessage = ex.Message;
    }
    return results;
}

Next Steps

  1. Test the modified code to see if the green box issue persists.
  2. If the problem continues, try using different image formats or compression settings.
  3. Review the Aspose documentation for any updates or additional options related to image handling in PDFs.

Please proceed with these steps, and let me know if you need further assistance!

3

Gotta love AI… that code wont even compile.

4

@ctenney

Have you tried saving the image to physical path after modifying it with Aspose.Imaging? Does it render correctly? Are you using the latest version(s) of the APIs? Can you please share sample source file(s) along with generated output for our reference? We will test the scenario in our environment and address it accordingly.