Print images

I store some images in database, and would like to print them on pdf report.
The image type is JPG, and the resolution is high for see it with a zoom on the form application.
But when i print it on pdf report, it’s huge. When i apply a width an height size on property of the field on pdf report, it’s pixellized.
How can I have a good resolution on the form (screen), and a good size on PDF?

I try to use other format than JPG, but no-one is recognized…(pdf, SVG,…)
The database is firebird, type blob image.

Best regards,

it wasn’t the good group.

I haven’t had well experience yet, so I appreciate your advices. I greet you