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...
We are experiencing the same issue on PowerBI desktop after the December update. Reports that used to Export to PDF just fine, with minimal margins, are now exporting with huge margins in the PDF.
Trying the various suggestions in this thread (adjusting the page view, closing filters/visualizations panes, setting background images to "fill" instead of "fit") have had no success for us.
It would be ideal, if possible, while this bug is being addressed, if there were a setting pane somewhere where we could explicitly set margins for the PDF export.
Hoping for a quick fix -- thanks!
Typical, narrow, consistent margin on PDF, before Dec. 2021 update
Large, inconsistent margins added to PDF after Dec. update