Markdown ↔ everything
PDF, HTML, DOCX. Round-trip with formatting preserved.
Solutions · Document Intelligence · Conversion
Every direction. One SDK.
Production .NET applications need to move documents between formats constantly: PDF reports out of Markdown, DOCX letters from templates, HTML email bodies from Markdown content, archived emails into PDF, spreadsheets into images. LM-Kit ships 15+ converters covering the full matrix. Native .NET, no command-line dependencies, no cloud calls.
PDF ↔ Image
Render any PDF page to PNG / JPEG. Wrap any image into a PDF.
Email → PDF / Markdown
EML and MBOX archives. Headers, body, attachments preserved.
Pick a direction. One method call.
MarkdownToPdf
Markdown → PDF
Full typography. Tables, lists, code blocks, headings, fonts. Glyphless-font fallback. Page size, margins, code styling all configurable.
MarkdownToDocx
Markdown → DOCX
Markdown to Word with style mapping. Output opens cleanly in Microsoft Word, LibreOffice, Google Docs.
MarkdownToHtml
Markdown → HTML
Customisable CSS classes, heading anchors, table styling. Drop into a static site, an email body, or an in-app help panel.
HtmlToMarkdown
HTML → Markdown
Reverse direction. Preserves links, images, tables, headings. Useful for ingesting web content into RAG pipelines.
DocxToMarkdown
DOCX → Markdown
Tables, lists, headings extracted from Word documents. Format-agnostic intermediate for AI workflows.
DocxMarkdownConverter
DOCX ↔ Markdown
Bidirectional with style mapping. Round-trip safe for most common formatting.
EmlToMarkdown
EML → Markdown
Email parsed: headers, body (plain or HTML), attachments listed. Useful for archive ingestion and RAG over inboxes.
EmlToPdf
EML → PDF
Email rendered as a PDF page. Compliance archives, legal discovery, audit trails.
MboxToMarkdown
MBOX → Markdown
Mailbox archives split per email, each rendered as Markdown with metadata frontmatter.
PdfToImage
PDF → Image
Render at any DPI / zoom. PNG, JPEG, WebP. Drives thumbnails, page previews, vision-model inputs.
ImageToPdf
Image → PDF
Single or multi-page. Layout options. Pair with OCR to produce searchable PDFs from scans.
DocumentToMarkdown
Anything → Markdown
Universal converter that auto-routes between TextExtraction and VlmOcr. The fast path when input format is unknown.
Real conversion code.
Render a Markdown source into a print-ready PDF with custom fonts, page size, and margins.
MarkdownReportToPdf.cs
using LMKit.Document.Conversion; // Daily report generated from Markdown templates, exported as PDF. var opts = new MarkdownToPdfOptions { PageSize = PageSize.A4, Margin = new Margins(2, 2, 2, 2), CodeFont = "JetBrains Mono", BodyFont = "Inter", EnableHeadings = true, }; await new MarkdownToPdf().ConvertAsync(markdown, @"C:\out\report.pdf", opts);
Iterate over every message in an mbox archive and emit one PDF per email for compliance bundles.
EmailArchiveToPdf.cs
// Convert a year of mailbox archives to PDF for a compliance bundle. var mbox = new MboxDocument(@"C:\archives\2026.mbox"); var emlToPdf = new EmlToPdf(); foreach (var eml in mbox.Emails) { await emlToPdf.ConvertAsync(eml, $@"C:\out\{eml.MessageId}.pdf"); }
Render each PDF page as a PNG at the chosen DPI, for previews and document galleries.
PdfThumbnails.cs
// Render every page of a PDF as a thumbnail image. var pdfToImage = new PdfToImage(@"C:\reports\Q3.pdf"); for (int i = 0; i < pdfToImage.PageCount; i++) { using var img = pdfToImage.RenderPage(i, dpi: 96); img.Save($@"C:\out\thumb_{i:D3}.png"); }
Conversion plus the toolkit.
Document to Markdown
The universal converter when the input format is unknown or mixed.
PDF toolkit
Merge, split, render, extract pages, search-highlight, generate searchable PDFs.
OCR
Pair Image → PDF with OCR to produce searchable PDFs from scans.
Email processing
EML / MBOX / ICS parsing, attachment extraction, archive compliance.
Build it. Read it. Try it.
Working console demos on GitHub, step-by-step how-to guides on the docs site, and the API reference for the classes used on this page.
Demo
Document to Markdown
Console demo: convert PDFs, DOCX, HTML to clean Markdown.
Open on GitHub → DemoDocument processing
Console demo: full-document processing pipeline with built-in tools.
Open on GitHub → How-to guideConvert documents to Markdown
Per-format heuristics, table preservation, layout-aware output.
Read the guide →