Adobe has updated Acrobat X Pro and Adobe Reader X to version 10.1.3, which resolves their associated PDF browser plug-in’s incompatibility with Safari 5.1 (when running in 64-bit mode). The plug-in now also supports Firefox in 32-bit mode. Additionally, Adobe’s EchoSign electronic signature service is further integrated into the two apps with the addition of new electronic signature types and the capability to send documents through EchoSign. The update also fixes a number of bugs from the previous release’s known issues, including print preferences defaulting to printing on both sides of the paper and crashes when trying to print in Protected Mode. For a complete rundown of all improvements and fixes in 10.1.3, download the PDF release notes from Adobe’s support page. ($449 new purchase of Acrobat X Pro with free update, free Adobe Reader X, 137.4 MB and 69.6 MB respectively)
Turn Off Filename Extension Warning
In Leopard, Apple fixed an annoying aspect of working with the Finder in Tiger. Previously, if you changed a file's extension, the Finder prompted for confirmation. But since no one has ever accidentally changed a filename extension, Apple thankfully added an option to turn that warning off in the Leopard Finder's preferences. Choose Finder > Preferences, and in the Advanced screen, deselect Show Warning Before Changing an Extension.
Adobe Acrobat X Pro and Reader X 10.1.3
Set up short abbreviations which expand to larger bits of text,
such as "Tx" for "TextExpander". With the new custom keyboard,
you can expand abbreviations in any app, including Safari and
(That's the top-level Library folder, not the one in your user account.)
I don't yet know if there's a way to get Firefox to save PDFs to files but let other Web browsers use the plug-in - deleting the file removes it from other browsers too.