I’ve recently discovered a couple of “sleeper” topics that customers search in Lightroom Community Help–topics that are frequently searched, yield middling results, and could definitely be better documented.
First: email. Lightroom offers a preset that automates the process of exporting JPEGs that are sized for sending via email: 640 x 480 pixels, sRGB, medium quality, 72ppi. The easiest way to use the preset is to select the photos for export and choose File > Export With Preset > For Email. Specify a location for the exported files, and you’re done.
Here’s a tutorial with more detail on how to do this on the Mac, including how to use a post-processing action to automatically create the email with the photos attached: Email photos directly from Lightroom (7:07), by Julieanne Kost on Adobe TV. Victoria Bampton has written a similar tutorial, Attach exported files to email (PDF), for Windows and Mac.
All of this is now documented at Exporting photos using presets.
Second: GPS. If your camera records GPS metadata, Lightroom can read the information and display it in an EXIF field in the Metadata panel. If your camera does not support GPS, there are a couple of ways you can get the information into Lightroom. First, you can use a geotagging device to capture GPS coordinates, and then use third-party software to merge that data with the photo before it’s imported. Alternatively, you can use Jeffrey Friedl’s GPS Support plug-in, which allows Lightroom to read data from a GPS device’s track log, or lets you directly “geoencode” a specific location.
Several great tutorials are available with more information about geotagging and Lightroom:
• Lightroom Killer Tips’ GPS information video (3:31)
• Geolocation and Lightroom, by Richard Earney
• GPS metadata and linking to Google Earth, by Martin Evening (scroll past the “Extra tips for advanced users” and “Audio file playback” topics to get to the GPS topic)
• A GPS for your digital camera, by Terry White (old, but still accurate)
This, too, is now all documented at View photo metadata.