I have a very strange problem.
In the office I save the PDF file to the desktop (at work I have a license of Adobe Acrobat X Pro). With the file everything is OK, no problems.
Then connect from home via Remote Desktop to the office computer and copy the file to my home PC. When I try to open a file it crashes with the error message "There was an error opening this document. The file is damaged and could not be repaired".
First I thought about the possible incompatibility between versions (at home I have Adobe Reader 9.5.5).
But after several attempts found that the file actually spoils, and spoils it when copying from PC to PC. The fact is that during the transfer from one computer to another PDF file is slightly increased in size. So my file in 344 KB turned into a 352 KB. And it only happens with PDF files. Others are transferred and copied normally.
PS: In my office I have Windows 7 Pro, home on the laptop - Windows XP Pro SP3.