This document explains the AI Fill PDF node, which automatically fills out PDF forms using AI understanding of context.

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Node Inputs

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Required Fields

  • Context: Information to use for filling
  • PDF File: Form to be filled (must have fillable fields)

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Optional Fields

  • Specify Pages: Fill specific pages only
  • Image Model: Choose AI model
  • Temperature: Controls filling accuracy (0-1)
  • Cache Response: Save results for reuse

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Show As Input Options

You can expose these fields as inputs:
  • Temperature

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Node Output

  • Filled PDF File: Completed form

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Node Functionality

The AI Fill PDF node:
  • Reads form fields
  • Understands field context
  • Maps data appropriately
  • Fills form fields
  • Preserves PDF structure

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Available AI Models

  • GPT-4.1 Vision
  • GPT-4.1 Mini Vision
  • Claude 3.7 Sonnet
  • Claude 3.5 Haiku
  • Gemini 1.5 Pro
  • Gemini 1.5 Flash

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Common Use Cases

  1. HR Forms:
Context: Employee data
PDF: Employment forms
Result: Completed paperwork
  1. Applications:
Context: Applicant details
PDF: Application form
Result: Filled application
  1. Legal Documents:
Context: Case information
PDF: Legal templates
Result: Prepared documents

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Important Considerations

  1. Advanced models (GPT-4.1 & Claude 3.7) cost 20 credits, and standard models cost 2 credits per run
  2. PDF must have fillable fields
  3. Context should be relevant

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Additional Information

Video Tutorial In summary, the AI Fill PDF node automates form filling by intelligently mapping provided information to PDF form fields.