When exporting pages as PNG charts are flipped

Aspose.PDF Product Family
1

12345678.pdf (3.2 MB)

static void Main(string[] args)
{
FileStream stream = new FileStream(“c:\temp\12345678.pdf”, FileMode.Open);
Document doc = new Document(stream);
PdfPageEditor editor = new PdfPageEditor(doc);
using (MemoryStream memoryStream = new MemoryStream())
{
new BmpDevice(new Resolution(300)).Process(doc.Pages[15], memoryStream);
Image b = Bitmap.FromStream(memoryStream);
b.Save(“c:\Temp\savedimage.png”,ImageFormat.Png);
}

    }
2

@rileyja

We used following code snippet in our environment with Aspose.PDF for .NET 20.10 and did not notice any issue:

Document pdfDocument = new Document(dataDir + "12345678.pdf");
 
for (int pageCount = 1; pageCount <= pdfDocument.Pages.Count; pageCount++)
{
 string tmpImgToInsert = DateTime.Now.Ticks + ".png";
 using (FileStream imageStream = new FileStream(dataDir + tmpImgToInsert, FileMode.Create))
 {
 var pngDevice = new PngDevice(new Resolution(300))
 {
  RenderingOptions = new RenderingOptions()
  {
   UseFontHinting = true
  }
 };
 pngDevice.Process(pdfDocument.Pages[pageCount], imageStream);
 imageStream.Close();
 }
}

637383127127466082.png (237.3 KB)

Could you please try using latest version of the API with above code snippet and let us know in case you face any issue.

3

This fixes the issue. thank you.

1 Like