There are a couple of apps in the Playstore which permit you to view/Edit EXIF data:
Photo Image Editor - Photoshop (free) says it can View, edit, or delete EXIF data
Same promised by Photo Editor
Exif Editor and Viewer (paid) promises to remove, modify, and add individual or multiple EXIF tags
Pixelgarde even states: Edit exif metadata for several photos ...
You can press the right soft-key (switch application soft-key). The application switcher in Android 4.2 includes the notification bar, which shows if there´s a GPS fix. You can press the right soft-key again to return to the camera app.
I've just tried on my Nexus 4 and it does show up, although very very briefly.
I had GPS turned on, took a photo and quickly opened the app switching 'menu'. I saw the GPS notification show up for about 1 second and then it disappeared. I guess this is because it quickly grabs your location and stores that with the image, and then "doesn't care" where you ...
You can geotag the photos from google photos web site.
Follow the below steps to geotag your google photos.
Go to photos.google.com
Select the photos that you want to geotag
Click the options menu and select Edit Location
Type the location and choose the appropriate one from the dropdown
Done. The photos are geotagged now
There is a paid app, Press IPTC, for photo journalists. If you work with FTP, it's great. You can find out more here. I'm the creator of this app and I'm a photo journalist for a local newspaper in the north of France.
I had the idea for this app because I couldn't find it on the market. I hope it can help you in your workflow.
This has been left out of the 4.2 Camera application.
You could get around this, if you really wanted the icon back, by installing the old camera app. You would need to be rooted to do this. You could also install a custom camera app off Google Play, which will not require you to be rooted.
There is no setting in the camera phone for GPS on my Galaxy S GT19000.
I disabled everything in Settings > location and security. It was still geotagging my photos, and I couldn't work out how it was doing that. But if you go to applications > local, it was here for me. Just visit the Settings section.