PDF pages truncated to length of last page

[SomasundaramVT]

I have a report which uses subreports and Break elements between them so that each subreport will show up on a separate Excel tab, and this works fine.

The problem comes when the report is exported to PDF.  In this case the report will have one PDF page for each tab, and the length of the last page seems to be determining the length of all the pages.  If the last page has the most data, everything is fine, but if the last page is short, all the other pages are truncated, even in the middle of detail rows.

Is this just the way the PDF exporter works?  Can PDF pages be different lengths?  Can we tell the exporter to use the longest page as the length for all pages?