Does this tool work on scanned or photographed PDFs?

No, it requires vector PDFs with an embedded font layer; image-only scanned PDFs without text layers are rejected.

Which equation scopes can be extracted?

You can select display equations only, all display and inline math runs, or exclusively numbered equations.

How are subequations like (1a) and (1b) handled?

Right-margin markers are detected and mapped to amsmath subequation structures to preserve original numbering.

Is the generated MathML compatible with web renderers?

Yes, the tool generates presentation MathML validated by Temml, which works directly with MathJax v3 and KaTeX.

What is included in the downloadable .tex bundle?

The bundle packages all extracted formulas structured into ready-to-compile LaTeX files with preserved equation labels.

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PDF Formula Extractor (LaTeX / MathML / MathJax) with AMS Equation-Number Preservation

Detect and reconstruct embedded math formulas from vector PDFs: math-font recognition (CMMI/CMSY/CMEX, STIX, Cambria Math), Unicode math, super/subscripts and stacked fractions, AMS equation numbers ((2a)/(2b) subequations) preserved; outputs copyable LaTeX, presentation MathML (MathJax/KaTeX-compatible) and a downloadable .tex bundle.

Details

What this tool helps you do

Extracts embedded formulas from vector PDFs into LaTeX and MathML. Math detection is font+layout based: LaTeX PDFs render equations in dedicated math fonts (CMMI math italic, CMSY/CMEX symbols, MSAM/MSBM AMS symbols), readable from pdf.js operator lists; super/subscripts come from baseline offsets, fractions from vertically aligned line pairs, and right-margin (N)/(Na) runs give AMS equation/subequation numbers. Every reconstructed LaTeX string is validated through temml and exported as presentation MathML, which MathJax v3 accepts directly. Scanned/image-only PDFs have no text layer and are rejected with a clear message (run OCR first).

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PDF Formula Extractor (LaTeX / MathML / MathJax) with AMS Equation-Number Preservation

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Use cases

Examples

1. Academic Paper Display Equation Extraction

2. Full Specification Formula Export with .tex Bundle

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