A “table” consists of drawing commands defined in the PDF that will first display the text followed by lines to form the cells. If the “Table” preference is turned on, PDF2DTP will attempt to examine the objects in order to create a true table object. Otherwise, if the “Table” preference is turned off then the text and lines will be converted as separate objects.
In the following sample, a true table was created when the PDF (which was originally created in InDesign) was converted into an InDesign document.
If you try converting a file and it hangs or crashes, try it again but this time disable the Table Preference. In many cases your file may convert, but will not contain actual tables.