# How to set the JPEG quality when exporting a .dwg file to a raster image?

 1. [FAQ](/ja/faq)
2. »
3. [Raster Image Questions](/faq/raster-image-questions)

You can control JPEG compression quality in the OdRxRasterServices::convertRasterImage() method:

```
const OdUInt32 flagsChain[3] = { OdRxRasterServices::kJpegQuality, 85, 0 };
if (pRasSvcs->convertRasterImage( pRaster, OdRxRasterServices::kJPEG, pStreamBuf, flagsChain))
{
...
}

```

Quality is set as a percentage:

- < 20 : poor quality
- 20 < 40 : average quality
- 40 < 60 : normal quality
- 60 < 80 : good quality (default)
- >= 80 : best quality