What you'll need
Sync to Lightroom CC on the desktop and the web requires a trial version of Lightroom CC or a Creative Cloud Photography plan subscription. Learn more about Creative Cloud plans.
Open Lightroom mobile on your device and sign into your Creative Cloud account.
Tap the ... control on a collection and choose Add Photos. Then tap the menu at the top and choose Camera. Locate a headshot from your camera roll and tap Add Photos (on iOS) or the checkmark (on Android). Your headshot is added to the collection.
If you're on an iPhone or iPad, you can take a photo with your device camera. In Lightroom, tap the camera button then tap the front-facing camera icon.
You can adjust camera options while you take the picture to get the best shot possible. For instance if you're outside, tap the White Balance icon and then tap the sun (daylight) icon. You can also apply filters to your image.
When you're done, tap the shutter button.
See Take better photos with the in-app camera in Lightroom mobile for more tips.
Tap the Crop button. To get the best results for LinkedIn you'll want to end up with a square image. Tap Aspect and choose 1x1. Crop your photo so that your face is centered.
Tap the checkmark when you're done. Tap the back arrow to automatically sync your edits to Lightroom across all your devices.
On your desktop, open Lightroom. Locate your headshot in the All Synced Photographs collection and double-click to open it. Finally switch to the Develop module to start editing.
Use the Basic panel to make adjustments such as Exposure, Contrast, or Temperature. The end result should be a nice high-contrast image.
Finally, click Black & White to give your headshot a more professional feel.
Next, you need to export your headshot so that it meets the specifications for a LinkedIn photo.
Choose File > Export. Select a folder in the Export Location section of the dialog.
In the File settings section, choose JPEG from the Image Format menu.
In the Image Sizing section, enable the Resize to Fit option and choose Long Edge from the menu. Enter 400 in the pixels field.
Finally, click Export.
Your headshot is now ready to be added to your profile. Go to LinkedIn and follow the instructions for uploading a profile image.