Hi folks.
I've googled around for a few hours, but I'm completely stumped with this one.
I'm trying to edit a .pdf file that was generated from Word 2007. Mostly it edits fine, but for reason some of what appears to be text isn't selectable with the text and image editor... in fact it doesn't even have a bounding box around it. When I move around the document or save it in acrobat pro, the "text" then vanishes.
I include a dropbox link to a partial screenshot image which shows what I'm talking about. You can see that the italic bold A doesn't have a box around it in some cases.
https://www.dropbox.com/s/42i8xms78lvw12b/Screenshot%202014-02-07%2011 .19.07.png
Can anybody kindly shed some light on what I'm doing wrong? 
Thanks!
-- gyre --