Problem Encountered Inserting Image in New PDF

Hello Folks,
I am new at creating a PDF. The first time I inserted an image, the image filled the page. The second time, the image remained small–less than full page. My question is this: how to or can I control the size of the image on the PDF page?

I welcome any help you can afford me. Thanks


is this question related to PDF Architect?
Please describe your workflow as detailed as possible.

Best regards,