Well , what is possible is for example :
sessionScope.put("test", "this is the first line \r and this is the second line");
data.addNewDynamicData("item", "eval:sessionScope.test");
This will print 2 lines of text on the pdf form in the "item" field. (on the pdf template I marked this text field as multiple line)
So, if you know how I could store all lines of a column of a view in a scoped variable and add \r in between each line, (as in my example above) it will be possible to export the view to a pdf form.