Why Convert Documents to Markdown?
Markdown is close to plain text but can express structure through simple symbols for headings, lists, tables, links, and more. It has several clear advantages:
- AI-friendly: GPT, Claude, and other mainstream AI models natively "speak" Markdown—feeding .md files to AI produces better results and saves tokens;
- Long-term readability: Plain text won't become unopenable due to software updates—you can still read it with Notepad ten years from now;
- Easy to manage: Git version control, full-text search, and cross-platform syncing are all convenient;
- Small file size: The same document as .md can be more than ten times smaller than .docx.
Method 1: markitdown (Microsoft Open-Source, Most Recommended)
markitdown is a Python tool open-sourced by Microsoft's AutoGen team that does one thing: convert various files to Markdown.
It supports an extensive range of formats:
- PDF, Word (.docx), PowerPoint (.pptx), Excel (.xlsx)
- Images (EXIF metadata + OCR text recognition)
- Audio (speech transcription)
- HTML, CSV, JSON, XML
- EPub ebooks, ZIP archives (automatically traverses content)
- YouTube video links (automatically extracts subtitles)
One tool covers almost all common formats, and it runs entirely locally—free and open source.
Installation
Requires Python 3.10 or higher. It's recommended to create a virtual environment first:
python -m venv .venv
.venv\Scripts\activate # Windows
# source .venv/bin/activate # macOS / LinuxThen install markitdown:
pip install "markitdown[all]"[all] installs all optional dependencies (PDF, Office, audio transcription, etc.). If you only need specific formats, you can install selectively, e.g., pip install "markitdown[pdf,docx,pptx]".
Command-Line Usage
The most basic usage is a single line:
markitdown document.pdf -o document.mdPipes are also supported:
cat document.docx | markitdown > document.mdFor batch conversion, a simple loop handles an entire folder:
# Windows PowerShell
Get-ChildItem *.docx | ForEach-Object { markitdown $_.Name -o "$($_.BaseName).md" }
# macOS / Linux
for f in *.docx; do markitdown "$f" -o "${f%.docx}.md"; donePython API Usage
If you want to call it from a script or integrate it into your project:
from markitdown import MarkItDown
md = MarkItDown()
result = md.convert("document.pdf")
print(result.text_content)
# Save to file
with open("document.md", "w", encoding="utf-8") as f:
f.write(result.text_content)To use an LLM for generating image descriptions (e.g., screenshots in a PPT), you can pass in an LLM client:
from markitdown import MarkItDown
from openai import OpenAI
md = MarkItDown(
llm_client=OpenAI(),
llm_model="gpt-4o",
)
result = md.convert("presentation.pptx")
print(result.text_content)Security note: markitdown reads and writes files with the current process's permissions. If processing untrusted documents, it's recommended to run in an isolated environment or use more restricted APIs (e.g., convert_local(), convert_stream()) to limit access scope.
Method 2: Pandoc (Command-Line Swiss Army Knife)
Pandoc is a veteran tool in the document conversion space, called the "universal converter between formats." It's particularly good with Office documents and LaTeX.
# Word to Markdown
pandoc document.docx -o document.md
# PPT to Markdown
pandoc presentation.pptx -o presentation.md
# EPub to Markdown
pandoc book.epub -o book.mdPandoc's advantage is high conversion quality and customizability, but the downside is that it doesn't support PDF to Markdown (PDF conversion requires an additional LaTeX engine, which is complex to configure).
Method 3: Online Conversion Tools
Search for "Word to Markdown" or "PDF to Markdown" in your browser and you'll find many online tools. The process is generally: upload file → download converted result.
- Pros: No installation needed—just open your browser;
- Cons: You have to upload files to third-party servers, not suitable for sensitive documents; local images may be lost; conversion quality varies.
Suitable for one-off conversion of a couple non-sensitive documents.
Method 4: Direct Copy-Paste
If the document is short and simple, the easiest approach might be:
- Select all in Word / PPT → Copy;
- Paste into a .md file;
- Manually add Markdown markers like
#headings,-list items, etc.
Works for short documents with just a few paragraphs. Once content grows or tables get complex, manual editing becomes tedious.
Format-by-Format Conversion Tips
Word (.docx) → Markdown
This is the most common conversion need. markitdown is recommended—it preserves heading hierarchy, lists, tables, links, and other structure. Pandoc is also a great choice.
PDF → Markdown
PDF conversion comes in two scenarios:
- Text-based PDF (where you can select text): markitdown converts directly with good results;
- Scanned PDF (image format): Requires OCR. markitdown can work with the LLM Vision plugin (
markitdown-ocr), or you can use a dedicated OCR tool to extract text first.
PowerPoint (.pptx) → Markdown
markitdown extracts content slide by slide, turning each slide into a section of Markdown. Text, lists, and tables are preserved. Images in slides can be described using an LLM.
Excel (.xlsx) → Markdown
Excel tables convert directly to Markdown table syntax. markitdown handles this well—simple tables need almost no manual adjustment after conversion.
Images → Markdown
markitdown can extract EXIF metadata (capture time, location, device, etc.), and with an LLM, can also generate image content descriptions. If you need to extract text from screenshots, install the markitdown-ocr plugin.
Comparison of Four Methods
| Method | Formats | Difficulty | Privacy | Batch | Best for |
|---|---|---|---|---|---|
| markitdown | Most | Medium | Local | Yes | Everyone |
| Pandoc | Many | Higher | Local | Yes | Advanced users |
| Online tools | Varies | Easy | Uploaded | No | One-off use |
| Copy-paste | Any | Very easy | Local | No | Short docs |
After Converting to Markdown, How to Read?
Once documents are converted into a bunch of .md files, the next question is how to open and read them.
We recommend mdview:
- Double-click to open: After installation, it associates .md files automatically—double-click to enter the reading view;
- Auto table of contents: Long documents get an auto-generated sidebar TOC—click headings to jump;
- Fully local: No files uploaded—open to see content, close to finish;
- Windows + Android: Both platforms available—read converted files anywhere.
After all, the purpose of converting to Markdown is to better read and manage content, and a capable viewer makes the entire workflow smoother.
Workflow tip: Use markitdown to batch convert documents to .md → use mdview to double-click and quickly preview → manage versions with Git once verified. The entire process is local—efficient and secure.
Summary
If you frequently need to convert documents to Markdown, markitdown is the most hassle-free choice: one command, covers almost all formats, maintained by Microsoft, completely free. Paired with mdview as your viewer, the experience from conversion to reading is smooth.
For occasional one-off use, online tools or copy-paste work fine. Pandoc is for advanced users who need higher conversion quality and are comfortable with the command line.