Better to save files to a designated folder in the Finder then the desktop.
Desktop preferences may be corrupted.
Open the Finder. From the Finder menu bar click Go > Go to Folder
Type or copy paste the following:
Click Go then move the com.apple.desktop.plist file to the Trash
Try saving a PDF file.
Thanks, but I already save to a folder on the desktop. The desktop prefs are OK.
Before I 'upgraded' to Mavericks, I just used to go to the File Menu, Save as... and everything was fine.
Now, if I do that, I just get an empty preview icon. If I try to open the pdf with Adobe reader, it says that it is corrupted.
However, since my original post I have discovered that there is now an icon window at the bottom of the Safari pdf window. If I click on the icon that looks like a floppy disc, then the pdf gets saved correctly.
Why has the procedure changed? If I save the pdf on my other machine, which is also upgraded to Mavericks, the procedure is as it was before. I definitely prefer that.