It seems that since the December update the "Export to PDF" is buggy and the actual report area is surrounded by white margins on all sides. page size (for all pages): 16:9 Fit to size activated...
Hi I'm experiencing the same problem. Before, my report was published to .pdf in the same aspect ratio as the report, and without extra margins. Now, pages are cropped into another aspect ratio and at all sides a margin is added. I am spending a lot of hours to reformat these reports in order to be 'presentable' for our customers.