[email]Herrygers@adobeforums.com[/email] wrote:
> Good Day,
> We are using Acrobat Pro 6, updated to 6.01 yesterday, and have a
problem with making any changes in Acrobat Pro 6, to an existing PDF
file and then trying to place in Quark. The message Quark gives is
either "wrong type" when trying to update a place PDF or "The PDF file
.... cannot be imported because it is an unrecognized version". ???

I had the same problem but have figured it out. We are using pitstop,
as a plugin with acrobat 6. Under the preferences/pitstop
professional/tools tab, check the box that says prevent automatic
change of pdf version at the bottom of that window. That is the fix.