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AI PDF filling skills for ChatGPT and Claude Code

Fill editable PDF forms with AI—from your source documents.

Clerks AI is a downloadable PDF form filler for ChatGPT and Claude Code. Buy once, install locally, and turn your form plus source files into an editable PDF with source-backed review notes.

Who it is for

When the answers already live in other documents.

Use Clerks AI when you have an editable PDF form and need to pull accurate details from the files you already have.

  • PDF form plus passport, ID, or prior application
  • PDF form plus tax records, notes, or spreadsheets
  • Forms that must stay editable after filling
  • Work that needs a human review step
01

Purchase the skill pack

Secure Stripe checkout. When payment succeeds, Stripe returns you here and the zip download starts automatically. The zip contains the three PDF skills for ChatGPT Skill Installer.

02

Install ChatGPT or Claude Code first

Pick the local agent you want to use. If you are new to both, start with ChatGPT. Once ChatGPT is open, attach clerks-pdf-skills.zip, type @, choose Skill Installer, and ask it to install the skills.

ChatGPT

Recommended for OpenAI users. Install it, open a project, then use Skill Installer from the prompt.

Setup guide

Claude Code

Install Claude Code if that is your preferred coding agent. Use the downloaded skills with your local workflow.

Setup guide
ChatGPT Skill Installer selected after typing @
03

Ask it to fill a PDF

Put the blank form and evidence files in one project folder, turn on Full access mode, then prompt the agent like this:

Use fill-pdf to complete g-1145.pdf with Shawn Zhou's info and files.

Ask your agent in plain English

Start with a normal ChatGPT or Claude Code prompt. Mention the target PDF and the evidence files you want the skill to use.

ChatGPT prompt using the Fill PDF skill

Get a filled PDF

The skill writes the completed PDF, fill plan, and notes about anything that still needs human review.

Filled PDF generated by the skill

See how it works

From source files to a completed PDF.

A real failed attempt

Why can't I just use ChatGPT or Claude Code directly?

Because a PDF that looks complete in an agent's response can still be incomplete, broken, or unsafe to hand off. This ChatGPT-only I-485 attempt was declared finished, but the file tells a different story.

  1. 01

    About 90% of the fields were not filled correctly, even though ChatGPT concluded the work was complete.

  2. 02

    The output did not render correctly in Adobe Acrobat Reader, one of the most widely used PDF editors.

  3. 03

    It corrupted the form, leaving many fields uneditable. That is not acceptable when the finished PDF needs to remain usable.

ChatGPT reports a completed I-485 PDF without skills, despite an incomplete and corrupted output

The agent reported a completed editable form. Download the resulting file and inspect it yourself.

Download failed PDF

What is included

A local AI PDF form filler workflow.

The Clerks AI skill pack gives ChatGPT and Claude Code the PDF tooling they need to fill forms from real documents, preserve editable fields, and call out anything a person should verify.

Fill PDF

Completes editable PDF forms from source documents and keeps the final form usable instead of flattening it.

Index Source Files

Turns PDFs, Word documents, spreadsheets, and notes into structured evidence your local agent can cite.

Finetune PDF Forms

Maps complex AcroForm fields once so future PDF filling runs are faster, cleaner, and easier to review.

FAQ

Questions before you download.

Do I need to pay for ChatGPT or Claude Code again?

Yes, you still need access to ChatGPT or Claude Code. We recommend ChatGPT for most users because it has a free tier, so you can start there and upgrade only if you need higher usage limits.

Is this secure and private?

Your documents stay with you and the AI provider you choose. The skills run locally in your ChatGPT or Claude Code environment, and Clerks AI never receives or stores your files. You can also use your provider’s privacy controls to opt out of having your data used to train its models.

What is the refund policy?

If it is not a fit, contact us within 7 days of purchase for a no-questions-asked refund.

Is Clerks AI a free browser-based PDF editor?

No. Clerks AI is a paid skill pack that you install in ChatGPT or Claude Code. It is for filling editable PDF forms from your existing documents, with a reviewable fill plan and notes about anything that still needs a person to check.