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Getting Started | Nodes | Credits

JH XMP Metadata Nodes

Custom nodes for loading and saving images with embedded XMP metadata (https://www.adobe.com/products/xmp.html).

When I generate tens or hundreds of images from ComfyUI they all go into a folder and get forgotten because I have no practical way to find them again. Embedded metadata solves this problem. When metadata is present in a file, both macOS and Windows index it automatically, making it searchable from the Finder on the Mac or the File Explorer in Windows.

 

 

Apps like Photoshop and Lightroom expose XMP metadata and allow it to be viewed or edited.

 

Supported Properties

The following metadata properties are currently supported:

Property	Description
dc:creator	A creator or list of creators of the image. Items can be separated by commas (John Doe, Jane Doe) or semicolons (John Doe; Jane Doe)
dc:rights	Information about the rights and clearances associated with the image, if any.
dc:title	A title for the image.
dc:description	A description of the image.
dc:subject	A subject or list of subjects. Items can be separated by commas (wetsuit, sunset) or semicolons (wetsuit; sunset)
photoshop:Instructions	Special instructions.
exif:UserComment	Any user-provided comment about the image.
Iptc4xmpCore:AltTextAccessibility	Alt. text that can (in principle) be used by assistive technologies.
Iptc4xmpCore:ExtDescrAccessibility	A longer, more detailed elaboration of the Iptc4xmpCore:AltTextAccessibility property

Getting Started

Installing from GitHub

1. Install ComfyUI

2. Clone this repository into the custom_nodes folder:

   cd ComfyUI/custom_nodes
   git clone https://github.com/ComfyUI-JH/ComfyUI_JH_XMP_Metadata_Nodes.git
   

3. Install the required Python packages. If you're using venv and pip that looks like this:

   cd ComfyUI_JH_Misc_Nodes
   pip install -r requirements.txt
   

   If you're using Poetry, then it's just

   cd ComfyUI_JH_Misc_Nodes
   poetry install
   

Nodes

Load Image With XMP Metadata

Just like the built-in Load Image node except if XMP metadata is embedded in the image it will be parsed and made available on the node's outputs. The xml_string output carries the entire XML data structure including metadata which is not specifically supported by this package.

Save Image With XMP Metadata

Saves any images piped into it with embedded XMP metadata. All inputs (except images) are optional. Can save in a variety of file formats: JPEG, PNG (with and without embedding the ComfyUI workflow), WebP (lossy and lossless).

Get Widget Value

Can be used to get the string, int or float value of any widget on any node. Simply pipe the node into this node's input and type in the name of the widget you want the value of.

Path to Stem

Given a path string (absolute or relative), this node returns the "stem," meaning the filename alone minus any extension.

Format Metadata

This utility node takes common workflow inputs (prompt, model_name, seed, etc.) and allows you to construct a string that can subsequently be piped into a Save Image With XMP Metadata node input to embed metadata however you choose.

Credits

This software includes source code from other products:

Product	Code Used	License
ComfyUI	Code from the Load Image and Save Image nodes.
ComfyUI-Custom-Scripts	The AnyType class and its implementation.