Add MarkdownPDF to tools directory

_tools/markdownpdf.md

@@ -0,0 +1,76 @@
+---
+title: MarkdownPDF
+category: "online editor"
+description: "MarkdownPDF is a free, browser-based Markdown editor and PDF/Markdown converter."
+icon: markdownpdf.png
+website: https://markdownpdf.app
+syntax:
+  - id: headings
+    available: y
+  - id: paragraphs
+    available: y
+  - id: line-breaks
+    available: y
+  - id: bold
+    available: y
+  - id: italic
+    available: y
+  - id: blockquotes
+    available: y
+  - id: ordered-lists
+    available: y
+  - id: unordered-lists
+    available: y
+  - id: code
+    available: y
+  - id: horizontal-rules
+    available: y
+  - id: links
+    available: y
+  - id: images
+    available: y
+  - id: tables
+    available: y
+  - id: fenced-code-blocks
+    available: y
+  - id: syntax-highlighting
+    available: y
+  - id: footnotes
+    available: n
+  - id: heading-ids
+    available: n
+  - id: definition-lists
+    available: n
+  - id: strikethrough
+    available: y
+  - id: task-lists
+    available: y
+  - id: emoji-cp
+    available: p
+    notes: "Shown in the preview and in the HTML, Word and browser PDF exports. The quick PDF export drops emoji."
+  - id: emoji-sc
+    available: n
+  - id: highlight
+    available: n
+  - id: subscript
+    available: n
+  - id: superscript
+    available: n
+  - id: auto-url-linking
+    available: y
+  - id: disabling-auto-url
+    available: y
+  - id: html
+    available: y
+    notes: "Sanitized with DOMPurify, so scripts and event handlers are removed."
+---
+
+[MarkdownPDF](https://markdownpdf.app) is a free set of Markdown tools that runs entirely in the browser. Files are processed client-side, so nothing is uploaded to a server, and no account is required.
+
+The [Markdown editor](https://markdownpdf.app/markdown-editor) has a split live preview and autosaves in the browser. It exports to Markdown, HTML, PDF, and Word (DOCX). The site also converts in the other direction: [PDF to Markdown](https://markdownpdf.app/) rebuilds headings, lists, and tables from a PDF, with OCR for scanned pages. Other tools include DOCX and HTML to Markdown, a table generator, and a token counter.
+
+{% include image.html file="/assets/images/tools/markdownpdf.png" alt="MarkdownPDF Markdown editor" %}
+
+MarkdownPDF uses [Marked](https://marked.js.org) with GitHub Flavored Markdown (GFM), plus `$`/`$$` math and Mermaid diagrams in fenced code blocks.
+
+{% include tool-syntax-table.html %}