Hi Leslie,

The first thing to note is that the coordinates are based on the center point of the annotation and not any of the corners, so right off the top you have to figure in half the width/height.

Additionally, an 800px wide form is not going to generate an 800px document because that only really applies to the size of the web interface.

Saved forms generate at 8.5x11 (or 11x8.5 if landscape) and I believe they default to 300dpi meaning your page image is most likely 2550x3300 pixels so 800 won't be enough.

You can find out by checking the lower-right corner of the document viewer on the desktop client.

As a result, your X coordinate should be more like half the width of the annotation, plus whatever distance you want from the left.

For example, in the screenshot below, I set X to 1000 and you can see it is still mostly to the left because the page is 2550 wide.