Currently, if you setup column with more than 5 column rows from the financial report then the PDF will generate extra page for the rest columns. (For example, if you setup the column as 6, then the 6th column will be listed into another page from the PDF) 

For many business scenarios, we need to modify with the columns shown on the report and if the PDF is set limited with 5 column on one page, it makes the PDF report looks like not professional. We suggest to add the PDF limits with columns or add an floating column on the PDF generator.