Image pixelated with API PDF Generator

Hello all,

I have been trying out and .

Both seem very easy to use and work well, except both render the PDF with the image pixelated (but only on my laptop). If I read the PDF on my cell, the image is looks great. I have tried using JPG and PNG formats, to no avail.

Does anyone have any ideas on this? I have never seen this happen on a PDF on any of my computers before.

Here is an example.