A client has provided a PDF file with vector information, and I need to make some adjustments to it. It is a complex file (an architectural design) with many different colors, line styles etc.
When I open the PDF in Illustrator (5.5) it opens ok, but all the objects lose their stroke and fill information - the paths are there and I can select them if I hover over them with my cursor, but they are completely invisible.
The information is definitely there: if I open the file in Acrobat Pro, everything shows correctly.
I tried placing the PDF in a blank Illustrator file. If I maintain the link to the PDF file, it works (everything is visible), but I cannot edit anything (it's just a linked file). If I do not maintain the link (remove the tickmark in the import box) the PDF is placed in my blank file, again with all stroke and fill information lost.
Due to the complexity of the file, manually rebuilding it (setting all stroke/fill information by hand, again) is not an option. How can I recover the information and still be able to manipulate the file in Illustrator, or what might be the cause for the loss of information?
(Unfortunately, the file is confidential, so I cannot provide screenshots or the original file. Sorry.)
Any help is much appreciated!