You can avoid page breaks inside the <IMG> HTML elements if you set on true the AvoidImageBreak flag of the converter. Avoiding page break inside an image is possible only if the element height is smaller than the next PDF page height.
The options you can set in this demo are:

- HTML Page URL or Local File to Convert. The URL of the HTML page to convert must be accessible from the computer where the converter runs. If the page requires authentication or if you are using a proxy server to access Internet then you have to set the converter properties accordingly as described in documentation
- Avoid Page Breaks Inside Images. This option control if the page breaks inside images should be avoided or not