If Lightroom is found during the installation of Dfx, Dfx will automatically be
added as an external editor. If for some reason Dfx does not show up as an
external editor, you can manually add Dfx as an external editor by following the
1 Open the Preferences in Lightroom.
2 Click the External Editing tab.
3 In the Additional External Editor section, select TIFF for File Format, sRGB for
Color Space, 8 or 16 bits/component for Bit Depth, set the desired Resolution,
and choose None for Compression.
Note: Dfx is only compatible with TIFF files (8 or 16-bit, with no compression).
4 Click on Choose to select an application. Navigate to the location of Dfx.
• On Windows, the default installation location for Dfx will be: C:\Program
• On Macintosh, the default installation location for Dfx will be: /Macintosh
5 Select the Dfx Lightroom file and click Choose.
6 Under the Preset drop-down menu, select Save Current Settings as New Preset…
and name the preset Dfx v4.
Dfx can now be easily accessed under the Photo menu as a preset external