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PDF Formula Extract

Upload PDF files containing math formulas. Based on OpenDataLoader open-source parser, automatically detects inline/display formulas, extracts LaTeX source with MathJax visualization preview. Export in TXT/JSON/Markdown formats.

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Click or drag PDF file here

Supports PDFs with math formulas, max 50MB, 100% local processing

FAQ

How It Works

This PDF formula extraction tool is built on the OpenDataLoader open-source local PDF parsing engine. All document processing is performed offline in your browser — no PDF files or formula data are ever uploaded to cloud servers.

1. Layered PDF Parsing & Recognition: Prioritizes reading native vector-embedded MathML and built-in math font formulas from the PDF. For image-based scanned PDFs, the built-in OCR engine recognizes math expressions within images.

2. Text Cleaning & Standardization: Automatically filters out garbled characters, redundant punctuation, and irrelevant descriptive text produced by OCR. Converts Chinese multiplication signs, square/cube symbols into standard LaTeX syntax.

3. Formula Classification: Automatically distinguishes between inline and display formulas, recording the PDF page number and page coordinates for each formula.

4. Visual Rendering & Export: Uses MathJax to render LaTeX formulas for visual preview. Supports one-click export to TXT, JSON, and Markdown formats.

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