How ProPDF
turns pixels into structure.
Upload a PDF and our AI pipeline dissects every page — extracting text, tables, images, and structure — then reassembles it as clean, publishable Markdown. Here's how the machine works.
From PDF to Markdown
in four stages.
Upload & Validate
You drop a PDF (up to 10 MB). We validate the file, extract metadata, and queue it for processing. No preprocessing required on your end — we handle everything server-side.
Quick Parse
A fast initial pass extracts text layers, identifies page structure, and catalogs embedded images. This gives us a skeleton — headings, paragraphs, and where the complex stuff lives.
Page-by-Page AI OCR
Each page is sent through our AI vision model for deep optical character recognition. This isn't your grandfather's OCR — it understands layout, reads tables cell-by-cell, deciphers handwriting, and interprets charts and diagrams.
Combine & Export
All page results are merged — headings unified, tables reconstructed, images linked, and cross-page references resolved. The final Markdown is validated and delivered in your chosen format.
Adaptable
workflow system.
ProPDF's processing pipeline is modular by design. Pages can be routed through different AI models, processing steps can be reordered, and custom post-processing hooks let you shape output to your exact needs.
Custom workflow configuration coming soon.
The brains behind
the conversion.
GLM OCR
Our primary vision model. GLM OCR delivers exceptional accuracy on printed text, complex tables, and multi-column layouts. It understands document semantics — distinguishing headers from footers, captions from body text, and sidebars from main content.
Additional AI engines are on the roadmap — we're constantly evaluating new models for speed and accuracy improvements.