seamless-pdf 0.3.0

Convert HTML, Markdown, and DOCX documents into continuous, single-page PDFs.

Seamless PDF

Convert HTML, Markdown, and DOCX documents into continuous, single-page PDFs -- no page breaks.

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Standard PDF converters split your content across fixed-size pages. Seamless PDF renders the entire document onto a single continuous page perfectly sized to the content's width and height. Ideal for long-form reports, documentation snapshots, newsletters and any workflow where page breaks get in the way or you want to retain the original content viewing experience.

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Features

Feature	Description
Single-Page Output	One continuous PDF sized exactly to your content
Multi-Format Input	Supports .html, .md, .markdown, and .docx files
CLI & Python API	Use from the terminal or integrate directly into your code
Markdown Rendering	GitHub-flavored Markdown with syntax highlighting via Pygments

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Installation

pip install seamless-pdf
python -m playwright install chromium
playwright install

Note: Playwright uses a headless Chromium browser under the hood to render documents. The second command downloads the browser binary. For first time installs of playwright or updates you may need download the new browsers with playwright install.

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Quick Start

Command Line

seamless-pdf input.html -o output.pdf
seamless-pdf README.md -o README.pdf
seamless-pdf report.docx -o report.pdf

Python API

from seamless_pdf import convert

convert("input.html", "output.pdf")
convert("README.md", "readme.pdf")
convert("report.docx", "report.pdf")

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Usage

The convert function automatically detects the input format from the file extension (.html, .htm, .md, .markdown, .docx). You can also specify the format explicitly:

from seamless_pdf import convert

# Auto-detected as Markdown
convert("docs/notes.md", "notes.pdf")

# Explicit input type override
convert("docs/notes.txt", "notes.pdf", input_type="markdown")

Supported Input Types

Extension	Type Keyword
.html, .htm	html
.md, .markdown	markdown
.docx	docx

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Requirements

Dependency	Version
Python	3.10, 3.11, 3.12, 3.13
Playwright (Chromium)	>= 1.40.0
markdown	>= 3.10.1
Pygments	>= 2.17.0
pymdown-extensions	>= 10.0
mammoth	>= 1.6.0

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Roadmap

• PDF-to-PDF re-rendering (merge & reflow existing PDFs)
• Improved error handling and diagnostics
• Broader PDF manipulation toolset
• Dark mode PDF output

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Cloning for your purposes...

git clone https://github.com/SleepyPandas/Document-to-ContinuousPDF.git
cd Document-to-ContinuousPDF
pip install -e ".[dev]"
pytest

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License

This project is licensed under the MIT License -- see the LICENSE file for details.