diff --git a/.gitattributes b/.gitattributes
index bed0738c7eeb449bca98b5d2f33c89a1ee56349a..f64f60505e59303301e8d8c68810a0000735f7f9 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -58,3 +58,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 # Video files - compressed
 *.mp4 filter=lfs diff=lfs merge=lfs -text
 *.webm filter=lfs diff=lfs merge=lfs -text
+ImageNet/flux2_dev/manifest.jsonl filter=lfs diff=lfs merge=lfs -text
diff --git a/ImageNet/README.md b/ImageNet/README.md
new file mode 100644
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+# PAPE — ImageNet
+
+Real ImageNet photographs edited by four image-editing models. Each manifest row is one language-specific pair: the source image, a semantically normal replacement, a semantically abnormal replacement of the same object, and a binary mask for each edit. Every pair in this folder has normal/abnormal mask IoU of at least 0.5.
+
+2,500 distinct ImageNet image ids are included. A source image can appear more than once when several objects, anomaly categories, or languages were edited.
+
+## Counts
+
+| Editor | Directory | Pairs | Chinese | English |
+| --- | --- | ---: | ---: | ---: |
+| Qwen-Image-Edit-2511 | `qwen_image_edit_2511` | 4,725 | 2,362 | 2,363 |
+| FireRed-Image-Edit-1.1 | `firered_image_edit_1.1` | 4,806 | 2,406 | 2,400 |
+| LongCat-Image-Edit | `longcat_image_edit` | 4,477 | 2,206 | 2,271 |
+| FLUX.2-dev | `flux2_dev` | 4,480 | 2,207 | 2,273 |
+| Total |  | 18,488 | 9,181 | 9,307 |
+
+## Split
+
+In `splits/split_seed2026.json` (seed 2026), all 2,500 ImageNet `image_id` values are test. COCO supplies the train and validation image ids.
+
+## Files
+
+```text
+<edit_model>/
+  manifest.jsonl
+  source/          JPEG, suffix .jpeg
+  normal/          PNG
+  abnormal/        PNG
+  masks/normal/    PNG
+  masks/abnormal/  PNG
+```
+
+Filenames follow `{sample_id}__{language}_{role}`, with roles `source`, `normal`, `abnormal`, `normal_mask`, and `abnormal_mask`. `image_id` is the ImageNet filename stem, such as `n01440764_12971`.
+
+`manifest.jsonl` fields used to load a row:
+
+| Field | Meaning |
+| --- | --- |
+| `sample_id` | Source image, target object, and anomaly id |
+| `image_id` | ImageNet stem, also the split key |
+| `language` | `zh` or `en` |
+| `edit_model_name` | Editor directory name |
+| `anomaly_type` | One category below |
+| `iou` | IoU between the normal and abnormal masks |
+| `normal_prompt`, `abnormal_prompt` | Instructions applied to produce this row |
+| `normal_prompt_zh`, `normal_prompt_en`, `abnormal_prompt_zh`, `abnormal_prompt_en` | Bilingual prompt fields stored with the row |
+
+`source_paths` and `export_paths` are absolute paths from the original export machine. Load images from `source/`, `normal/`, `abnormal/`, and `masks/` in this folder.
+
+## Anomaly categories
+
+| Id | Pairs | Share | Abnormal edit |
+| --- | ---: | ---: | --- |
+| `C1_physical_attribute` | 4,126 | 22.3% | Material or physical state is not one the object can have |
+| `C2_spatial_relation` | 2,542 | 13.7% | Support, contact, containment, or scale is inconsistent |
+| `C3_function_affordance` | 3,150 | 17.0% | The object does not support the use shown in the edit |
+| `C4_scene_context` | 2,618 | 14.2% | A recognizable object does not belong in the scene |
+| `C5_biological_structure` | 3,216 | 17.4% | Anatomy, part count, or bodily configuration is inconsistent |
+| `C6_interaction_relation` | 2,836 | 15.3% | An action or relation between entities is incoherent |
+
+The normal edit replaces the same object in a semantically ordinary way. Both edits are meant to keep location, scale, lighting, and viewpoint close to each other.
+
+ImageNet photographs remain under the ImageNet terms. This folder does not relicense them.
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diff --git a/ImageNet/flux2_dev/manifest.jsonl b/ImageNet/flux2_dev/manifest.jsonl
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diff --git a/README.md b/README.md
index 154df8298fab5ecf322016157858e08cd1bccbe1..0f9e846519880cc9ea73afeda67dc75f130dde94 100644
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+++ b/README.md
@@ -1,3 +1,60 @@
 ---
-license: apache-2.0
+license: other
+language:
+  - en
+  - zh
+pretty_name: PAPE
+size_categories:
+  - 10K<n<100K
+tags:
+  - image-editing
+  - image-forensics
+  - forgery-localization
+task_categories:
+  - image-to-image
+  - image-segmentation
 ---
+
+# PAPE
+
+PAPE (Plausible Anomalous Paired Edits) is a paired image-editing dataset for localizing semantic edits. Each sample edits one object in a real photograph twice: a semantically ordinary replacement, and a replacement that introduces one controlled semantic anomaly. Both edits have a binary change mask. Only pairs whose normal and abnormal masks have IoU of at least 0.5 are included.
+
+Source photographs come from COCO, ImageNet, and Places. Those photographs stay under the terms of the source dataset. This repository does not relicense them. Generated edits and masks are released for research.
+
+## Subsets
+
+| Subset | Source images | Language-specific pairs | Role in `splits/split_seed2026.json` | Readme |
+| --- | ---: | ---: | --- | --- |
+| [COCO](COCO) | 2,000 | 14,668 | train 1,600 / val 200 / test 200 image ids | [COCO/README.md](COCO/README.md) |
+| [ImageNet](ImageNet) | 2,500 | 18,488 | all 2,500 image ids are test | [ImageNet/README.md](ImageNet/README.md) |
+| [Places](Places) | 2,000 | 14,591 | all 2,000 image ids are test | [Places/README.md](Places/README.md) |
+| Total | 6,500 | 47,747 | seed 2026 |  |
+
+A pair is one language. Chinese and English edits of the same object are separate rows, so one source image can contribute more than one pair, and not every image has both languages for every editor.
+
+## Editors
+
+Each subset contains the same four edit models:
+
+| Directory | Model |
+| --- | --- |
+| `qwen_image_edit_2511` | Qwen-Image-Edit-2511 |
+| `firered_image_edit_1.1` | FireRed-Image-Edit-1.1 |
+| `longcat_image_edit` | LongCat-Image-Edit |
+| `flux2_dev` | FLUX.2-dev |
+
+## Layout
+
+```text
+<COCO|ImageNet|Places>/<edit_model>/
+  manifest.jsonl
+  source/
+  normal/
+  abnormal/
+  masks/normal/
+  masks/abnormal/
+```
+
+`manifest.jsonl` has one JSON object per line. `normal_prompt` and `abnormal_prompt` are the instructions used for that row. `image_id` joins a row to `splits/split_seed2026.json`. `source_paths` and `export_paths` record paths on the machine that built the release; use the files in this repository instead.
+
+Details, counts, and anomaly categories are in each subset readme.