Quality of image

Technical Support Apryse SDK
1

Q:
Using PDFDraw the resulting image doesn’t look as good as other PDF to image conversion

A:
To maximize speed of rendering, by default PDFNet uses fast re-sampling algorithms.

With PDFDraw though you can often increase image quality, without changing dpi, by enabling the hq_image_resampling in SetImageSmoothing.

`
draw.SetImageSmoothing(true, true); // second parameter is hq_image_resampling

`

2

Some images actually come out the best with no smoothing at all. So an alternative setting to the default, or the one mentioned above, is to disable smoothing.

`
draw.SetImageSmoothing(false, false);

`