README.md

---
license: apache-2.0
task_categories:
- object-detection
tags:
- document-intelligence
- form-field-detection
- pdf
- multilingual
configs:
- config_name: default
  data_files:
  - split: train
    path: data/train-*
  - split: test
    path: data/test-*
  - split: valid
    path: data/valid-*
dataset_info:
  features:
  - name: id
    dtype: int64
  - name: image_id
    dtype: int64
  - name: image
    dtype: image
  - name: file_name
    dtype: string
  - name: width
    dtype: int64
  - name: height
    dtype: int64
  - name: objects
    sequence:
    - name: id
      dtype: int64
    - name: area
      dtype: float32
    - name: bbox
      sequence: float32
    - name: category
      dtype:
        class_label:
          names:
            '0': Text
            '1': CheckBox
            '2': Signature
    - name: category_id
      dtype: int64
    - name: iscrowd
      dtype: int64
    - name: segmentation
      sequence: int64
  splits:
  - name: train
    num_bytes: 160974075696.39
    num_examples: 435698
  - name: test
    num_bytes: 11950697193.877
    num_examples: 33061
  - name: valid
    num_bytes: 5942589583.79
    num_examples: 18195
  download_size: 153336406972
  dataset_size: 178867362474.05704
---

# CommonForms: A Large, Diverse Dataset for Form Field Detection

This repository hosts the **CommonForms** dataset, a web-scale dataset for form field detection, introduced in the paper [CommonForms: A Large, Diverse Dataset for Form Field Detection](https://huggingface.co/papers/2509.16506).

CommonForms casts the problem of form field detection as object detection: given an image of a page, predict the location and type (Text Input, Choice Button, Signature) of form fields.

**Key Features:**
*   **Scale:** Roughly 55,000 documents comprising over 450,000 pages.
*   **Source:** Constructed by filtering Common Crawl to find PDFs with fillable elements.
*   **Diversity:** Contains a diverse mixture of languages (one third non-English) and domains, with no single domain making up more than 25% of the dataset.
*   **Purpose:** The first large-scale dataset released for form field detection, aimed at fostering the development of robust form field detectors.

**Paper:** [CommonForms: A Large, Diverse Dataset for Form Field Detection](https://huggingface.co/papers/2509.16506)
**Code:** [https://github.com/jbarrow/commonforms](https://github.com/jbarrow/commonforms)