Advanced Features Settings

Configure external processing modules to enable advanced PDF features. These modules are optional and licensed separately.

Pre-configured and ready to use. Advanced modules load from pinned CDN versions. For an air-gapped or self-hosted deployment, use only the fixed same-origin directories /wasm/pymupdf/, /wasm/ghostscript/, and /wasm/cpdf/. Other origins and paths are rejected for security.

PyMuPDF

Document Processing Engine

Not Configured

Enables: PDF to Text, Markdown, SVG, DOCX, Excel • Extract Images/Tables • Format Conversion

Recommended: jsDelivr CDN · PyMuPDF WASM

Ghostscript

PDF/A Conversion Engine

Not Configured

Enables: PDF/A-1b, PDF/A-2b, PDF/A-3b Conversion • Font to Outline

Recommended: jsDelivr CDN · Ghostscript WASM

CoherentPDF

Bookmarks & Metadata Engine

Not Configured

Enables: Split by Bookmarks • Edit Bookmarks • PDF Metadata

Recommended: https://cdn.jsdelivr.net/npm/coherentpdf@2.5.5/dist/

License Notice: The external modules (PyMuPDF, Ghostscript, CoherentPDF) are licensed under AGPL-3.0 or similar copyleft licenses. By configuring and using these modules, you agree to their respective license terms. AmrrkPDF is compatible with any Ghostscript WASM and PyMuPDF WASM implementation that follows the expected interface.