How chinapandaman/pypdfform works
PyPDFForm is a Python library and CLI for PDF form automation. The main workflow loads a PDF into PdfWrapper, exposes existing fields for inspection or mutation, applies supplied field values or creates content, and writes the resulting PDF. Separate CLI commands support inspection, updates, annotations, raw drawing, page extraction, and merging. Widget models and middleware represent form fields; hooks apply field-property changes to PDF annotations. The README documents several capabilities whose command implementations were not sampled, so their connections are limited to documented entry points.
Main entry points: wrapper.py PdfWrapper · entry.py CLI entry · types.py PDF collections · create.py Create commands
Components 18
Python API
- PdfWrapper
PyPDFForm/lib/wrapper.py - PDF collections
PyPDFForm/lib/types.py
Command Line
- CLI entry
PyPDFForm/cli/entry.py - Create commands
PyPDFForm/cli/create.py - Inspect commands
PyPDFForm/cli/inspect.py - Update commands
PyPDFForm/cli/update.py - Remove commands
PyPDFForm/cli/remove.py
Form Fields
- Field models
PyPDFForm/lib/widgets - Field middleware
PyPDFForm/lib/middleware - Field hooks
PyPDFForm/lib/hooks.py
PDF Content
- Raw elements
PyPDFForm/lib/raw - Annotations
PyPDFForm/lib/annotations - Watermark drawing
PyPDFForm/lib/watermark.py
Document Operations
- PDF operations
PyPDFForm/lib/types.py
Other components
- Python developer
- CLI user
- Input PDF
- Output PDF
Connections 21
- Python developer → PdfWrapper: calls API
- Input PDF → PdfWrapper: loads PDF
- PdfWrapper → Output PDF: writes PDF
- PdfWrapper → Field middleware: loads fields
- Field middleware → PdfWrapper: exposes state
- PdfWrapper → Field hooks: triggers hooks
- CLI user → CLI entry: runs commands
- CLI entry → Create commands: dispatches
- CLI entry → Inspect commands: dispatches
- CLI entry → Update commands: dispatches
- CLI entry → Remove commands: dispatches
- Create commands → PdfWrapper: creates content
- Inspect commands → PdfWrapper: inspects PDF
- Update commands → PdfWrapper: updates PDF
- Remove commands → PdfWrapper: removes content
- PdfWrapper → Field models: builds fields
- Field models → Watermark drawing: renders widgets
- PdfWrapper → Raw elements: draws elements
- PdfWrapper → Annotations: adds annotations
- PdfWrapper → PDF collections: merges PDFs
- PDF collections → PDF operations: extracts pages