I just want to document the simplest solution for editing PDF files. Step 1: Convert the file to PostScript
Step 2: Directly edit PostScript file In particular to add the text to specific position you will need to upload the file to gv and use the cursor to find the coordinates of the position where you want to add the text. Then fire up that vi editor and add something like gsave /Times-Roman findfont 24 scalefont setfont 100 250 moveto (Your text here) show % more moveto/show pairs for the remainder of the page grestore before the last showpage in your PostScript file. Step 3 Convert PostScript file back to PDF file. Cheers, Predrag
