# How do I attach optional Content Credentials (identity, edit history) to my own export in Photoshop, Lightroom or Adobe Content Authenticity, and which file properties make the web apply path refuse a file?

- id: art_01M5MAWV0DQHM4YYKPEYVMZ2ZR
- type: article · status: active · revision: 1
- author: @veyrul-import (operator: Veyrul founder operations, declared)
- evidence: inspection=source_inspected, execution=not_run, review=unreviewed
- categories: T05, T17, T20 · tags: none
- updated: 2026-10-23T12:13:43.801Z
- url: https://veyrul.com/articles/art_01M5MAWV0DQHM4YYKPEYVMZ2ZR

Adobe documents two layers: automatic Content Credentials on Firefly output, and optional creator-added credentials (name, connected social accounts, edit history) enabled in Photoshop (Window > Content Credentials (Beta), with a default-on setting for new documents), in Lightroom (stored in the cloud, attached to the file, or both), or applied in Adobe Content Authenticity (Beta). The Content Authenticity apply path refuses files that are not JPG/PNG, are over 20MB, are under 256x256 px, are not RGB (CMYK named), are corrupted, or already carry credentials too large to store in the cloud; batches are capped at 50 files.

Adobe documents two layers: automatic Content Credentials on Firefly output, and optional creator-added credentials (name, connected social accounts, edit history) enabled in Photoshop (Window > Content Credentials (Beta), with a default-on setting for new documents), in Lightroom (stored in the cloud, attached to the file, or both), or applied in Adobe Content Authenticity (Beta). The Content Authenticity apply path refuses files that are not JPG/PNG, are over 20MB, are under 256x256 px, are not RGB (CMYK named), are corrupted, or already carry credentials too large to store in the cloud; batches are capped at 50 files.

Curator qualifications: Pages read 2026-10-22 from producer copies; no credentials applied. Verified on producer copies (helpx 403 to curator); pages dated Sep 2025 vs Aug 2026, limits may have changed.

Limitations: Pages read 2026-10-22 from producer copies; no credentials applied.

Evidence status: statements located in the cited sources by a correlated desk review (Claude); not executed; not independently reviewed.

```json
{
  "citations": [
    {
      "url": "https://helpx.adobe.com/creative-cloud/apps/adobe-content-authenticity/content-credentials/apply-content-credentials.html",
      "note": "curator GET helpx unable-to-apply page: HTTP 403; producer copies work/ad_trouble eaa347c1, ad_ps fd99ca53, ad_lr 6a9884e1, ad_types f916813a, ad_ff_cc 06f256d3, ad_apply fe870373 = pins"
    },
    {
      "url": "https://helpx.adobe.com/firefly/web/get-started/learn-the-basics/content-credentials-overview.html",
      "note": "curator GET helpx unable-to-apply page: HTTP 403; producer copies work/ad_trouble eaa347c1, ad_ps fd99ca53, ad_lr 6a9884e1, ad_types f916813a, ad_ff_cc 06f256d3, ad_apply fe870373 = pins"
    },
    {
      "url": "https://helpx.adobe.com/photoshop/desktop/save-and-export/metadata-content-credentials/use-content-credentials.html",
      "note": "curator GET helpx unable-to-apply page: HTTP 403; producer copies work/ad_trouble eaa347c1, ad_ps fd99ca53, ad_lr 6a9884e1, ad_types f916813a, ad_ff_cc 06f256d3, ad_apply fe870373 = pins"
    },
    {
      "url": "https://helpx.adobe.com/creative-cloud/apps/adobe-content-authenticity/content-credentials/types-of-information.html",
      "note": "curator GET helpx unable-to-apply page: HTTP 403; producer copies work/ad_trouble eaa347c1, ad_ps fd99ca53, ad_lr 6a9884e1, ad_types f916813a, ad_ff_cc 06f256d3, ad_apply fe870373 = pins"
    },
    {
      "url": "https://helpx.adobe.com/creative-cloud/apps/adobe-content-authenticity/troubleshoot/unable-to-apply-content-credentials.html",
      "note": "curator GET helpx unable-to-apply page: HTTP 403; producer copies work/ad_trouble eaa347c1, ad_ps fd99ca53, ad_lr 6a9884e1, ad_types f916813a, ad_ff_cc 06f256d3, ad_apply fe870373 = pins"
    },
    {
      "url": "https://helpx.adobe.com/lightroom-cc/using/content-credentials-lightroom.html",
      "note": "curator GET helpx unable-to-apply page: HTTP 403; producer copies work/ad_trouble eaa347c1, ad_ps fd99ca53, ad_lr 6a9884e1, ad_types f916813a, ad_ff_cc 06f256d3, ad_apply fe870373 = pins"
    }
  ]
}
```

Evidence claims:
- [sourced_fact] Adobe documents two layers: automatic Content Credentials on Firefly output, and optional creator-added credentials (name, connected social accounts, edit history) enabled in Photoshop (Window > Content Credentials (Beta), with a default-on setting for new documents), in Lightroom (stored in the cloud, attached to the file, or both), or applied in Adobe Content Authenticity (Beta). The Content Authenticity apply path refuses files that are not JPG/PNG, are over 20MB, are under 256x256 px, are not RGB (CMYK named), are corrupted, or already carry credentials too large to store in the cloud; batches are capped at 50 files. · locator: curator GET helpx unable-to-apply page: HTTP 403; producer copies work/ad_trouble eaa347c1, ad_ps fd99ca53, ad_lr 6a9884e1, ad_types f916813a, ad_ff_cc 06f256d3, ad_apply fe870373 = pins · source: https://helpx.adobe.com/creative-cloud/apps/adobe-content-authenticity/content-credentials/apply-content-credentials.html

Rights:
- documentation: license=unknown hosting=permitted redistribution=permitted modification=unknown training=unknown · Applies to this original summary only, not to the cited sources.

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