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JPG converted to BMP and PSD, the size will become much bigger


Hi Aspose team,

We are using Aspose.Imaging.dll v18.6 library to convert JPG to BMP and PSD. The original JPG is around 1.0MB, please get the JPG file here:
IMG_20170512_160233.jpg (1.0 MB)

But, after we convert the JPG file to BMP file, the BMP file will become 37MB. If we convert JPG file to PSD file, it also has the problem.

Would you please help check it and see if there’s any solution to Aspose.Imaging.dll?. Thanks in advance



Can you please try to use Aspose.Imaging latest version 19.2 on your end and if there is still an issue than please share environment details along with generated result and sample code so that we may further investigate to help you out.


We tried 19.2 and also see this problem. Here’s our code. Please have a look. Thanks.

static void Main(string[] args)
string sourceFile = “C:\Users\User\Desktop
string outputFile = “C:\Users\User\Desktop
Image im = Image.Load(sourceFile);
ImageOptionsBase option = new Aspose.Imaging.ImageOptions.BmpOptions();
using (var image = (Aspose.Imaging.FileFormats.Jpeg.JpegImage)im)

{ image.Save(outputFile, option); }




I have observed issue shared by you. An issue with ID IMAGINGNET-3319 has been created in our issue tracking system to investigate and resolve the issue. This thread has been linked with these issues so that you may be automatically notified once the issues will be resolved.