Plainmark guides
PDF and webpage to Markdown guides.
Practical workflows, reproducible tests, and plain-language comparisons for converting PDFs and public webpages into Markdown you can review and reuse.
Latest articles
How to save an online article as Markdown.
Keep the article, source details, and useful links without carrying over the whole webpage.
Webpage to Markdown API: output, limits, and security.
Understand URL fetching, structured output, validation, and when a browser converter is enough.
How to preserve reading order in multi-column PDF to Markdown.
Reconstruct columns, captions, sidebars, footnotes, and spanning elements before export.
How to extract tables from PDF to Markdown.
Review rows, multiline cells, cross-page continuations, and merged-cell fallbacks.
How to prepare Markdown for RAG and AI knowledge bases.
Clean structure, preserve provenance, and review source material before retrieval and indexing.
How to convert a webpage to Markdown for AI and research.
Remove page clutter, keep useful structure, and review the result before reuse.
Best PDF to Markdown converters in 2026.
Five tools compared by document support, review experience, privacy, and setup.
How to convert PDF to Markdown without losing structure.
Convert, compare both versions, and fix common formatting problems before export.