ComfyUI Nodes

Clean PNG saving and readable metadata for ComfyUI.

The SoftSin ComfyUI node set keeps image saving simple: one node builds a readable metadata block, and one node saves the final PNG with the metadata you choose to include.

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Supported node set - RELEASED AND READY FOR DOWNLOAD!

The public release stays focused on the two nodes that matter most for finished images: metadata control and clean image saving.

Metadata

SoftSin Metadata

Builds a readable PNG metadata block using the fields you control: artist name, copyright year, orientation, and disclaimer text.

Inputsartist_namecopyright_yearorientationdisclaimer

Outputextra_pnginfo

Save

SoftSin Save Image

Saves images to your chosen output folders, embeds the SoftSin metadata block, and records the connected stock KSampler settings during save.

Inputsimagefilename_prefixextra_pnginfomain_dirsubfolder

Outputsaved PNG file

Recommended workflow

Use Preview Image for checking the render while SoftSin Save Image writes the final PNG with your selected metadata attached.

Recommended SoftSin ComfyUI workflow showing VAEDecode feeding Preview Image and SoftSin Save Image, with SoftSin Metadata feeding extra_pnginfo into SoftSin Save Image.

VAEDecode.imagebranches to Preview Image and SoftSin Save Image.

SoftSin Metadata.extra_pnginfofeeds the metadata socket on SoftSin Save Image.

SoftSin Save Imagesaves the PNG and embeds only the clean SoftSin metadata block.

Metadata output example

Example of the readable metadata block written into the saved PNG.

Artist: SoftSin Studios, © 2026 SoftSin Studios

KSampler:
 Seed: 15  Steps: 35
 CFG: 1.5
 Sampler Name: euler_ancestral
 Scheduler: karras
 Denoise: 1.0

Orientation: 1080x1440 - portrait

User-written notes or disclaimers can go here.

Install

Install the node folder inside ComfyUI, restart, and add the nodes from the SoftSin utilities section.

1. DownloadDownload the SoftSin ComfyUI node package from the official release location.

2. Place folderPlace the unzipped node folder inside ComfyUI/custom_nodes/.

3. RestartRestart ComfyUI, then add the nodes from SoftSin/Utilities.

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No full workflow dumping

The save node is designed to avoid stuffing the full ComfyUI workflow into the PNG metadata.

User-controlled notes

The disclaimer or notes field is typed in the node instead of being hardcoded into the Python file.

Small public release

The node set stays narrow, supportable, and easy to understand without turning into another tangled node pile.