DNG Validate


DNG validate is a helper plugin that validates DNG files using Adobe's unofficial dng_validate, and writes the result to an information field.

The plugin provides both a system task for initializing existing DNGs, as well as listeners for new DNGs (and new version). Note that to validate these DNGs, the asset is downloaded to the appserver and evaluated locally.

The information field can then be used in other plugins, e.g. the AssetMarker to flag invalid assets.



Type: String, required: yes, default: -

License string provided by brix (name: dngValidate)


Type: String, required: yes, default: -

Full path to the executable. For license reasons you need to download and compile it yourself.

Linux: github.com/abworrall/go-dng and edit the Makefile to point the zlib download URL to https://github.com/madler/zlib/releases/download/v1.2.13/zlib-1.2.13.tar.gz (or later)


Type: long, required: no, default: -

Dropdown to set the validity in. MUST look like this:

        <dropdown id="152" name="dng_validate">
                <label lang="de">DNG Validation</label>
                <label lang="en">DNG Validation</label>
                <option index="1">
                        <label lang="de">k.A.</label>
                        <label lang="en">n/a</label>
                <option index="2">
                        <label lang="de">gültig</label>
                        <label lang="en">valid</label>
                <option index="3">
                        <label lang="de">ungültig</label>
                        <label lang="en">invalid</label>


Type: long, required: no, default: -

Checkbox to set to true if the DNG is valid. This is an alternative to the dropdown.


Type: long, required: no, default: -

Textarea field to write the validation log to. Probably not necessary (just enable DEBUG logging), but if you want to show the user what exactly is broken, use this.

Compatibility Matrix

DNG Validate CELUM (min. version)
1.0.0 5.13.3 (tested with 6.16)

Release Notes


Release: 2022-04-20

Initial Version