Export for PDF is weird in Affinity Photo 2

[Nanana]

Hello, My pdf looks fine on Affinity photo, but when I export, it has a white space on top. I'm not doing anything, just exporting it to PDF. Any idea what might be happening?

Thanks!

[thomaso]

Does your screenshot of APh show the document before export - or the opened PDF after export?
Could it be a bleed setting for the additional white space?

Can you try this:
• Draw a rectangle in canvas size, no fill no stroke.
• Select only this layer with Move Tool and
• choose in the export dialog at Area: "Selection Area".

Does the resulting PDF still show the white border?
If yes, are the page size reported in the PDF viewer app and the canvas size in APh identical?

[Nanana]

I have it before export and after export. I'll try your tips. Thanks so much!