How to maintain image quality after adding it to jasperreport (created in iReport)?

I am struggling with 72 hours with an image problem. When I add an image in iireport 4.6, the image is always blurry, and this blurry image appears on the pdf created by jasperreport after it starts. after googling I was pointed at dpi. I tried increasing the dpi in the image, but it looks like it too. I tried to save the SVG version of the image from the online converter and ran into the problem of adding the .svg version of the image.

I wonder if there is a trick? can anyone shed some light? looking at my schedule, I was officially late for this day.

thanks for reading this and help