PDF or Image to LaTeX Converter-PDF/Image to LaTeX Conversion Tool

Example

From a 30-page problem set PDF: grabs (1) inline E=mc^2 instances inside paragraphs, (2) display equations like \[\nabla \cdot \mathbf{u} = 0\], and (3) multi-line derivations as one aligned block rather than fragmented lines.

Scenario

A TA migrating legacy assignments to Overleaf runs the PDF through the tool. It returns a checklist of 120 detected formulas, each with a thumbnail preview and an ID. Inline expressions are labeled as inline math (to be wrapped in $...$), and display blocks as equation/align environments. The TA bulk-copies only the math without cleaning out surrounding prose.

Example

Automatically selects correct environments and commands: fractions (\frac{\cdot}{\cdot}), roots (\sqrt{}), delimiters (\left...\right), matrices (pmatrix/bmatrix), cases, operators (\sum, \int, \lim), accents (\hat{}, \bar{}), and spacing (\, \; \! ). For a piecewise function with limits: $f(x)=\begin{cases} \lim\limits_{n\to\infty} \frac{a_n}{n}, & x>0 \\ 0, & x\le 0 \end{cases}$

Scenario

A research assistant needs to lift formulas from a scanned appendix that includes tagged equations and multiline proofs. The tool outputs aligned blocks with \begin{align}…\end{align}, converts numbered displays to \tag{n} when visible numbers exist, and preserves structure of long expressions using \split or alignment points (&) so the result compiles cleanly without re-typesetting.

Example

Uncertain glyphs are highlighted with choices (e.g., ε vs. ϵ; μ vs. u; 1 vs. l). Confidence badges appear per symbol or per line. It suggests improvement tips: “Image slightly skewed; re-scan at ≥300 DPI,” “Increase contrast,” or “Crop margins to avoid page headers being misread as math.”

Scenario

An instructor snaps a photo of a chalkboard. The preview flags low contrast and two ambiguous symbols in the integral’s limits. The tool shows side-by-side candidates and proposed LaTeX: Candidate A: $\int_{0}^{\infty} e^{-\mu x}\,dx = \frac{1}{\mu}$ Candidate B: $\int_{0}^{\infty} e^{-u x}\,dx = \frac{1}{u}$ The instructor selects the correct one and copies the final snippet. If the user can’t improve the photo, they still receive a best-effort LaTeX with explicit \text{[ambiguous]} notes for manual correction.