Hi,
Please try two things:
1. Try to force your page to be wider. For example, you can do this by adding something like this in your HTML:
Code: HTML/ASPX
<div style="width:1000px;height:1px;"></div>
The reason is by default the HTML to PDF converter's "window width" is much smaller than a typical web page's width (because the paper width is smaller than the screen width). Our HTML to PDF converter will try to automatically detect the minimum width of your page contents and then apply zoom factor based on that. Certain page can not handle layout correctly when the window width is too small. Forcing the page to be wider will help you avoid such issues;
2. Increase HtmlToPdf.Options.MinLoadWaitTime. Some page uses JavaScript to dynamically create page contents. However the HTML to PDF converter does not know when your JavaScript has finished running. It is possible that the converter started before your JavaScript code has finished running ---- for example, the converter might have kicked in before amChart detected window resize but actually finishes resizing itself. In that case you can try to increase MinLoadWaitTime to give your JavaScript more time to run;
If neither of the above resolves the issue for you, please try to isolate the issue into a test page and post the test page. Once we have that we will try to run it here and see if we can reproduce the problem here.
Thanks!