We've upgraded multiple systems running Windows 7 Professional with latest Microsoft patches from Adobe Reader 11.0.9 to 11.0.10 and we've run into an issue where users are unable to save over an existing PDF file on a network drive after adding a signature. Reader acknowledges the document exists and offers to overwrite, and comes back with no error, but when we re-open the document, no signature appears. If we save the file to a new name (such as the suggested "document-signed.pdf") that works, and we can then rename/copy the file. However, when saving documents to the local "My Documents" folder, the overwrite is successful. This appears to be a bug in the 11.0.10 release -- how can we best report this to developers? (Or did I just do that?)
I tried disabling Protected Mode per the referenced thread, and files do save correctly to our network drive. This seems like an adequate workaround until there's a proper fix later.
Silly and Stupid fix: if you have the Window open at the file location and you have the "Show the Preview Panel" active this will sometimes cause the file to appear as open. Disable the Preview Panel and try it again.
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Disable protected mode works