Convert Markdown to PDF via API in 30 Seconds

Anton Fredriksson — Tue, 14 Apr 2026 08:18:28 +0000

Generating PDFs programmatically is painful. HTML-to-PDF libraries are bloated, styling is unpredictable, and you end up fighting CSS print layouts instead of building your product.

I built MarkdownPDF to fix this. Write Markdown, get a beautiful PDF back — via one API call on RapidAPI.

What MarkdownPDF Does

Send Markdown text, receive a styled PDF. That simple.

• 6 built-in themes — GitHub, Dark, Academic, Minimal, Corporate, Elegant
• Page orientation — Portrait or landscape
• Watermark-free output on Pro tier
• Fast — PDFs generated in under a second

Why Markdown Instead of HTML?

• No CSS debugging — themes handle all styling
• Portable — Markdown works everywhere
• Clean output — consistent, professional PDFs every time
• Simple integration — plain text in, PDF out

Real Use Cases

• Invoice generation — Write invoice content in Markdown, get a styled PDF
• Documentation exports — Convert README files to downloadable PDFs
• Report automation — Generate weekly reports from structured data
• Email attachments — Create professional PDF attachments on the fly
• Resume builders — Let users write in Markdown, deliver polished PDFs

6 Themes to Choose From

• GitHub — Clean, familiar developer style
• Dark — Inverted colors for modern aesthetics
• Academic — Formal, research-paper formatting
• Minimal — Ultra-clean, distraction-free
• Corporate — Professional business documents
• Elegant — Refined typography and spacing

Pricing

• Basic ($9/mo) — 5,000 requests. All themes, watermarked output.
• Pro ($19/mo) — 25,000 requests. All themes, watermark-free.

No free tier. Professional tool, professional pricing.

Get Started

MarkdownPDF on RapidAPI:
https://rapidapi.com/fredrikssonanton01/api/markdownpdf

Documentation & Examples:
https://fyrnity.com/tools

Built by Fyrnity — developer tools that just work.

How to Humanize AI Text with One API Call

Anton Fredriksson — Tue, 14 Apr 2026 08:12:59 +0000

AI-generated text is everywhere — but it often sounds like AI. Repetitive patterns, robotic phrasing, and that uncanny "ChatGPT voice" that readers (and AI detectors) spot instantly.

I built ChromaWrite to solve this. It's a text processing API on RapidAPI that transforms AI-generated text into natural, human-sounding writing — with a single API call.

What ChromaWrite Does

Five actions, one endpoint:

• Rewrite — Improve clarity and flow
• Grammar — Fix every error instantly
• Tone — Shift between formal, casual, professional, friendly, or academic
• Humanize — Convert AI text into natural human writing
• Summarize — Condense long texts into short, medium, or long summaries

Why Not Just Prompt Engineer?

You could ask ChatGPT to “sound more human” — but:

• Inconsistent results — Every prompt gives different quality
• No API — You can't automate prompt engineering in a pipeline
• Token waste — Burning tokens on meta-instructions instead of content
• No specialization — ChromaWrite's humanize model is tuned for this task

Real Use Cases

• Content publishers — Run AI drafts through ChromaWrite before publishing
• SEO teams — Bulk-process AI content without the robotic tone
• Email marketing — Humanize AI-written campaigns so they feel personal
• Chatbots — Post-process bot responses to sound more natural