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html2pdfR

html2pdfR is an R package for converting local HTML and XHTML files to PDF using an external backend.

Overview

The package provides a simple R interface for XHTML-to-PDF conversion.

The R package contains only R code and documentation. The required backend files are managed separately and can be downloaded when needed.

Features

• Convert HTML and XHTML files to PDF
• Download and configure the required backend automatically
• Launch an optional Tk GUI for interactive use
• Keep package source separate from third-party executables

Installation

# install.packages("remotes")
remotes::install_github("Lijin-5673/html2pdfR")

Backend setup

This package does not bundle third-party executable binaries inside the R package source.

If the backend is not already installed, the package can download it from the project’s GitHub Releases.

You can also install the backend manually:

library(html2pdfR)
install_html2pdf_backend()

Or set the path to an existing backend executable:

library(html2pdfR)
set_html2pdf_backend("C:/path/to/converter_backend.exe")

Basic usage

library(html2pdfR)

convert_html_to_pdf("C:/path/to/file.xhtml")

If the backend is missing, the package will prompt to install it during interactive use.

GUI usage

library(html2pdfR)

launch_html2pdf_app()

The GUI will prompt to download the backend if it is not already installed.

Main functions

• find_html2pdf_backend()
• set_html2pdf_backend(path)
• install_html2pdf_backend(url = NULL)
• convert_html_to_pdf(input)
• launch_html2pdf_app()

Notes

• The backend executable is managed outside the package source.
• Backend files are intended to be downloaded from GitHub Releases.
• The package is currently focused on interactive desktop use.

License

GPL-3

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.
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