How to Convert Images, PDFs and Handwritten Math to LaTeX

Why typing math in LaTeX takes so long

LaTeX is the standard for writing mathematics at universities and in research, because it produces precise, beautiful formulas. The trade-off is that you have to describe every symbol in code: \frac{a}{b} for a fraction, \int_0^1 for an integral, \begin{pmatrix} … \end{pmatrix} for a matrix.

That is manageable for a short formula, but not for full pages of notes, exam solutions or chapters of a thesis. Most of the time goes into three things: looking up the command for a symbol you don't remember, aligning multi-line equations, and hunting down compilation errors.

4 ways to convert math to LaTeX

There are several ways to get from a formula on paper to LaTeX code, and they differ a lot in how much of the work they do for you:

If you only need one symbol, a symbol finder is enough. For anything longer than a line, an AI converter is what saves you the most time.

How to convert an image or PDF to LaTeX with MathWrite, step by step

MathWrite is an AI tool built specifically for mathematical content. It recognizes handwritten and printed notation (fractions, integrals, matrices, Greek letters, multi-line equations) and returns LaTeX that compiles.

1. 1

   Capture your notes

   Take a photo with your phone or scan the page. MathWrite accepts JPG, PNG and GIF images and PDF files up to 10 MB. Make sure the page is flat, well lit and fills most of the frame.

2. 2

   Choose the right model

   Use Professional for handwritten notes, scanned or blurry documents and complex formulas. Use Turbo for PDFs that were already typeset in LaTeX, such as papers or lecture notes downloaded from the internet: it converts dozens of pages in a few seconds, but it isn't designed for handwriting.

3. 3

   Upload and convert

   Drag the file into MathWrite or click to select it. Images are converted in seconds; for multi-page PDFs you'll see a progress bar while each page is processed.

4. 4

   Review and edit the result

   The LaTeX code appears next to a compiled preview, so you can compare it with the original at a glance. Fix anything you need directly in the editor and recompile to check it.

5. 5

   Export

   Copy the code, open it in Overleaf with one click, or use the Convert tool to export it to Word (.docx), OpenDocument (.odt), HTML or Markdown.

Example: from handwritten notes to LaTeX

This is a real page of handwritten calculus notes on limits, exactly the kind of content MathWrite is built for:

\section*{Limits. Definitions}

\textbf{Precise Definition:} We say $\displaystyle\lim_{x\to a} f(x) = L$ if for every $\varepsilon > 0$ there is a $\delta > 0$ such that whenever $0 < |x-a| < \delta$ then $|f(x) - L| < \varepsilon$.

\textbf{``Working'' Definition:} We say $\displaystyle\lim_{x\to a} f(x) = L$ if we can make $f(x)$ as close to $L$ as we want by taking $x$ sufficiently close to $a$ (on either side of $a$) without letting $x = a$.

\subsection*{Relationship between the limit and one-sided limits}

\[
\lim_{x\to a} f(x) = L \;\Longrightarrow\; \lim_{x\to a^+} f(x) = \lim_{x\to a^-} f(x) = L
\]
\[
\lim_{x\to a^+} f(x) = \lim_{x\to a^-} f(x) = L \;\Longrightarrow\; \lim_{x\to a} f(x) = L
\]
\[
\lim_{x\to a^+} f(x) \neq \lim_{x\to a^-} f(x) \;\Longrightarrow\; \lim_{x\to a} f(x) \text{ Does Not Exist}
\]

\subsection*{Properties}

\begin{enumerate}
  \item $\displaystyle\lim_{x\to a} \bigl[c\, f(x)\bigr] = c \lim_{x\to a} f(x)$
  \item $\displaystyle\lim_{x\to a} \bigl[f(x) \pm g(x)\bigr] = \lim_{x\to a} f(x) \pm \lim_{x\to a} g(x)$
  \item $\displaystyle\lim_{x\to a} \bigl[f(x)\, g(x)\bigr] = \lim_{x\to a} f(x) \cdot \lim_{x\to a} g(x)$
\end{enumerate}

Tips for the most accurate conversion

• Use even light and avoid shadows across the page; natural daylight works best.
• Photograph the page straight on, not at an angle, and crop out the desk and margins.
• One page per image: very large or panoramic photos lose detail.
• Write symbols that are easy to confuse clearly: 1 and l, x and ×, u and v, 0 and O.
• For long PDFs typeset in LaTeX, use Turbo; for handwriting or scans, always use Professional.
• Check subscripts, superscripts and indices in the preview before exporting. It takes seconds and catches the occasional mistake.
• If your PDF is larger than 10 MB, split or compress it before uploading.

What you can do after converting

Once your notes are in LaTeX, MathWrite includes tools to finish the document without leaving the platform:

Who converts their notes to LaTeX

It is used in mathematics, physics, engineering and any other field that relies on scientific notation.

Frequently asked questions