Snapfish for Lightroom historically refers to a third-party export and publish plugin designed for Adobe Lightroom Classic (LrC). It streamlined the workflow by allowing photographers to upload their edited catalog images directly to Snapfish without leaving the Lightroom interface.
However, the official alloyphoto Snapfish plugin has broken and is no longer actively supported in recent versions of Lightroom Classic. Modern Alternative: The Export Workflow
Because the direct upload plugin is outdated and prone to errors on newer Lightroom builds, the recommended community standard is to use a manual export process.
Select Images: Highlight the finished photos in your Lightroom Library. Open Export Settings: Click File > Export.
Format as JPEG: Set the file type to JPEG and the color space to sRGB.
Resolution: Maintain maximum quality or use a high resolution to avoid the “low resolution” pixelation warnings on Snapfish.
Upload Online: Log into your web browser and drag the folder into your Snapfish Photo Library. Crucial Export Settings for Snapfish Prints