Pdf form filling

Skill cxcscmu/SkillLearnBench/skills/b4-skill-creator-gemini-3-flash-preview/court-form-filling/pdf-form-filling

[COLM'26] SkillLearnBench is the first benchmark for evaluating continual learning methods that automatically generate agent skills.

Install

npx -y skills add cxcscmu/SkillLearnBench --skill pdf-form-filling

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SKILL.md

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name: pdf-form-filling description: How to programmatically fill PDF forms with fillable fields. Use this skill whenever you need to fill a PDF that has fillable form fields (checkboxes, text fields, etc.).

PDF Form Filling Skill

This skill provides a structured workflow for filling PDF forms that contain fillable fields.

Workflow

Extract Field Information: Use the extract_form_field_info.py script to get a JSON representation of all fillable fields in the PDF.
```
python3 /root/.agents/skills/pdf/scripts/extract_form_field_info.py <input.pdf> <field_info.json>
```
Analyze Fields (Optional but Recommended): Convert the PDF to images to visually map field IDs to the form's labels if the field IDs are not descriptive.
```
python3 /root/.agents/skills/pdf/scripts/convert_pdf_to_images.py <input.pdf> <output_directory>
```
Prepare Field Values: Create a field_values.json file containing the values for each field you want to fill. Format:
```
[
  {
    "field_id": "field_name",
    "description": "Short description",
    "page": 1,
    "value": "Value to fill"
  }
]
```
- Checkboxes: Use the checked_value (often /Yes or /On) or unchecked_value (often /Off).
- Radio Groups: Use the specific value from radio_options.
- Text Fields: Provide the string to be entered.

Fill the Form: Run the fill_fillable_fields.py script to generate the filled PDF.

python3 /root/.agents/skills/pdf/scripts/fill_fillable_fields.py <input.pdf> <field_values.json> <output.pdf>

Field Value Mapping Table

Type	How to fill
text	Direct string value
checkbox	Use `checked_value` from info
radio_group	Use one of the `radio_options` values
choice	Use one of the `choice_options` values

SKILL.md

PDF Form Filling Skill

Workflow

Field Value Mapping Table

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