My research on the Adobe side indicates that Lacerte is downloading more fonts into the PDF files, including some fonts that are not used.  some of the fonts are even in different languages and represents a standard download when the font is selected for the document.  My understanding is that Lacerte can control this and restrict the download of the fonts to only those actually used in the document.  This is a major issue as now I cannot email returns due to the large size of the files.  This is a must fix issue.