LrC Roundtrip

If Lightroom is not automatically round-tripping to Gigapixel and back, quit Lightroom and follow these steps to correct the issue: 

In Finder, navigate to your applications folder 

Locate Topaz Gigapixel AI and right-click the app icon 

Select Show Package Contents 

Navigate to Contents/Resources/lrtemplates 

Select and Copy the 2 files ending in .lrtemplate 

Next, navigate to ~/Library/Application Support/Adobe/Lightroom/External Editor Presets 

In the External Editor Presets folder, Paste the 2 items 

Close the Finder window 

Launch Lightroom and right-click on the image you want in Gigapixel 

Hover over Edit In and select Topaz Gigapixel AI 

You will be prompted with options on how to send the image to Gigapixel 

We recommend Edit a Copy with Lightroom Adjustments 

This option passes your edits along as a duplicate file so that the original remains unharmed 

After making your adjustments in Gigapixel, choose Export to Adobe Lightroom Classic 

Gigapixel will close and send the image back to Lightroom automatically