How to set your iPhone’s brightness to -1

Justin Searls published a nifty post with animated GIF images that explain how to enable a low light filter on an iPhone running iOS 8. This is super helpful when reading in a dark room, and I’m stoked I don’t have to jailbreak. The end result: triple–click your home button to toggle the low light filter. Squee!

Caveat when upgrading from Google Authenticator 2.0.0 to 2.0.1 (iOS)

If you upgraded to Google Authenticator 2.0.0 (see my last post) and recreated all your account tokens, I’d like to warn you.

Your old account tokens will be restored. This means it’ll be difficult to determine which ones are current.

Solution: Rename your current accounts before upgrading from 2.0.0 to 2.0.1 with these steps:

  1. Tap the pencil icon located at the top right corner.
  2. Tap on the name of each field to edit.
  3. When you’re done, tap the check mark located at the top right corner.

Google Authenticator 2.0.1 - Edit Step 1 Google Authenticator 2.0.1 - Edit Step 2

After you upgrade, you can confirm the new tokens still work, then delete the old ones.

How to split huge PDF documents for free

How to split PDFs for free

At work, one of the attorneys had a humongous PDF document she needed to email a lot of other attorneys outside the office. I tried extracting pages with an old version of Adobe Acrobat (v5), but the original file still kept the same size (despite having deleted the pages).

With open source (free) software, I split the document into two separate files in a couple minutes.

Required: PDFCreator

Once you install that, open your PDF document (original_superlongdocument.pdf) in your preferred reader. Now, go to File > Print. Change your printer to PDFCreator, then change your page range so you’re only “printing” half the document. If you have a 1,000 page document, set it to 1-500.

Follow the prompts and save that new PDF file — just not over your original. (superlongdocument_a.pdf)

Now, repeat for pages 501-1000 and save that one with a different filename. (superlongdocument_b.pdf)

My new geotagging workflow with the Amod AGL3080 and Lightroom (Windows)

After my trip to my Hawaii, I finally realized how much I want a GPS data logger for geotagging. So, after the TWIP recommendation for the Amod AGL3080 GPS Data Logger and a bit of reading, I decided to buy one.

Oh yeah, it helped that Semsons is literally a mile from me — and they allow for pickup! That saved me eight bucks. Note: I’m not affiliated with Semsons. I bought the device with my own money.

I went for a drive to get some ice cream, then In-N-Out. I took a few photos while I was out, of course.

Back at home, I plugged in my Amod AGL3080 and copied the log file to my desktop.

I ran the GPSBabel (GUI) to convert the log file so GeoSetter could read it. Set the input format to NMEA 0183 sentences, choose the log file on your desktop, then choose an output format and new filename. For GeoSetter, choose GPX XML.

If you want to make a map with Google Earth, choose Google Earth (Keyhole) Markup Language. Then, you can open that log file and visually see the route like so:

Google Earth screenshot of my test route using the Amod AGL3080

Import your photos into your Lightroom as usual. I don’t use the DNG format right now — I keep the original RAW files and use XMP sidecar files.

Run GeoSetter and set the file options for the type of photos your working with. I enable “Save data in XMP sidecar files.”

Now, navigate to the photos and select all the photos your log file applies to. Then, go to Images > Synchronize with GPS Data Files (Ctrl+G). Since I’m at home, I used the Local Windows Settings for the time adjustment. (I’m sure I need more research on this section, but this’ll work for now.)

Click OK, then it’ll popup a box confirming the photos that the log applies to. Click YES, and it’ll write the locations for each photos, prompting for the different sublocations if applicable. (How’s that for more details?)

Your last step in GeoSetter is to save that data to the XMP files. Ctrl+S does the trick, backs up the original XMP files, and writes the new ones.

Finally, in Lightroom, select the photo(s) you just geotagged in GeoSetter, right-click and go to Metadata > Read metadata from file. It’ll throw up one last warning, but you’ll be fine — click Read.

Now, if you look at the metadata on the right pane (Loupe View in Library), Location should be filled in. Also, notice the plethora of additional keywords? Flickr can read this and I’m sure Picasa Web can, too.

Now, process your photos like normal. When you export your geotagged photos to JPEG and upload them to Flickr, they’ll already be geotagged.

How awesome is that?

Please look at the sources for Mac solutions and other software recommendations.



Updates 6/25/08 2pm PDT

I posted a link to this in the TWIP Flickr group and have already received a couple insightful and encouraging comments that my workflow is legit. (Thanks guys!)

Gunnar Steinn suggested merging points closer than ten meters to keep the GPX file slim. I need to figure this out or someone needs to show me how. Also, don’t edit the photos before geotagging because “it will get lost when you reread the files.” (permalink) That hasn’t happened to me yet, but I’ll be working on them after the fact anyway.

k2pi” also loves the Amod AGL3080, but uses RoboGEO as his software solution. A single user personal license is $39.95. (permalink)

Update 5/26/2009 – I forgot to link to “Geotagging revisited.” It’s an addendum to this post.