Free online PNG to TEX converter

Source format: PNG

PNG (Portable Network Graphics) is a raster image format widely used for screenshots, web graphics, diagrams, logos, and images that need lossless compression. It preserves sharp edges, supports transparency, and is broadly compatible across operating systems and applications.

In a PNG-to-TEX workflow, the PNG is usually not converted into editable drawing commands. In most cases, it is either embedded in a LaTeX document or used as the source for OCR if you need text or equations extracted.

Target format: TEX

TEX is the source file format used by the TeX/LaTeX typesetting system. A TEX file contains plain text markup that describes document structure, formatting, equations, references, and included graphics. Its main advantages are portability, high-quality typesetting, and excellent support for technical and scientific documents.

When converting from PNG, the usual goal is to create a TEX file that references the image with an \includegraphics command rather than trying to recreate the image content as text.

How to convert png to tex

The best method depends on what you want the TEX file to do.

If you want to display the PNG in LaTeX: create a small TEX wrapper around the image. This is the most reliable approach.

1. Place the PNG file in the same folder as your TEX file, or note its path.
2. Create a new plain-text file named document.tex.
3. Add a minimal LaTeX document such as:
   \documentclass{article}
\usepackage{graphicx}
\begin{document}
\includegraphics[width=\linewidth]{image.png}
\end{document}
4. Compile the TEX file with a LaTeX engine such as pdflatex document.tex, or use a LaTeX editor like TeXstudio or TeXworks.

If you need editable text or equations from the PNG: use OCR or math OCR first, then paste the recognized output into a TEX file and review it carefully. Tools such as Mathpix Snip can recognize mathematical notation and generate LaTeX code, while OCR tools can extract plain text from scanned images.

Using desktop software

In a LaTeX editor, the process is usually manual rather than automatic. For example, you can use File → New, paste the LaTeX code, then save the file with a .tex extension. If you are preparing a document with multiple images, keep the PNG files organized in the same project folder and reference them with relative paths.

Notes on quality, compatibility, and limitations

PNG to TEX is not a true image-to-text conversion in most cases. TEX is a markup language, so the PNG image itself cannot be meaningfully converted into editable LaTeX drawing instructions unless you use specialized OCR or vectorization tools, and even then the results are limited. The standard and most compatible approach is to embed the PNG in a TEX document.

Keep in mind that LaTeX does not always accept every image format in every compilation mode. PNG works well with pdflatex, xelatex, and lualatex, but not with classic latex workflows that produce DVI unless additional conversion steps are used. Very large PNG files can increase compile time and output size, so resizing or optimizing the image may help.

If your goal is to convert a PNG into a TEX file online without installing software, you can use 101convert.com for free.

Summary

For most users, converting PNG to TEX means creating a LaTeX file that includes the image. If you need text or equations extracted from the image, use OCR first and then place the recognized content into your TEX document.