pdf-form-filling SKILL.md skillA
pdf-form-filling from cxcscmu/skilllearnbench is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add cxcscmu/skilllearnbench/pdf-form-filling@git:20260424.d50cf5aPins git:20260424.d50cf5a in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- cxcscmu/skilllearnbench
- Path
skills/b1-one-shot-gemini-3-flash-preview/court-form-filling/pdf-form-filling/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260424.d50cf5a, committed Apr 24, 2026
- Size
- 1,818 bytes
- Repository stars
- 91
- License
- MIT
Methods for programmatically filling PDF forms (AcroForms) and saving the results using pypdf.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# PDF Form Filling Skill
This skill covers how to fill out AcroForms in a PDF document using `pypdf`.
## Prerequisites
- Python 3.x
- `pypdf` library (`pip install pypdf`)
## Usage Patterns
### Filling Text Fields and Checkboxes
```python
from pypdf import PdfReader, PdfWriter
def fill_pdf(input_pdf_path, output_pdf_path, data_dict):
reader = PdfReader(input_pdf_path)
writer = PdfWriter()
for page in reader.pages:
writer.add_page(page)
# Fill form fields
writer.update_page_form_field_values(writer.pages[0], data_dict)
# Note: If fields span multiple pages, you might need to iterate
# through writer.pages and apply relevant parts of data_dict.
# However, writer.update_page_form_field_values can often find the fields
# globally if they are properly indexed.
with open(output_pdf_path, "wb") as output_stream:
writer.write(output_stream)
# Example data_dict
# For text fields: {"field_name": "Value"}
# For checkboxes: {"checkbox_name": "/Yes"} or similar
data = {
"full_name": "John Doe",
"is_citizen": "/Yes"
}
fill_pdf("blank.pdf", "filled.pdf", data)
```
### Important Considerations
…Read the whole file at its exact version.
How to install
mdr add cxcscmu/skilllearnbench/pdf-form-filling@sha256:776528fb764d2560The line at the top of this page pins the label git:20260424.d50cf5a, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_trgiongocfex2r4q)
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Versions
The registry has recorded 1 version of this file, committed on Apr 24, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (1818 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
cxcscmu/skilllearnbench · 91 stars · license MIT · pushed 2026-10-02 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_trgiongocfex2r4q GET https://markdownregistry.com/api/v1/resolve?ref=cxcscmu/skilllearnbench/pdf-form-filling GET https://markdownregistry.com/api/v1/blob/776528fb764d25602f153697d99b3e598a41b15b15425cafd53a5af0f797c103
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.
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