CatchTeXSnip it from the paper.
Get LaTeX that compiles.
CatchTeX turns tables, equations, plots, diagrams and reference lists from PDFs and screenshots into clean, editable LaTeX, ready to paste into Overleaf. Everything runs offline on your own computer.
Windows 10/11, macOS 12+ (Apple silicon), Linux · no TeX installation needed · your papers never leave your PC
| Method | Set A | Set B | Params |
|---|---|---|---|
| ↓ | ↓ | (M) | |
| Baseline | 4.21 | 7.85 | 11.2 |
| Ours (α = 0.5) | 3.64 | 6.90 | 11.4 |
\begin{tabular}{lccc} \toprule Method & Set A & Set B & Params \\ & $\downarrow$ & $\downarrow$ & (M) \\ \midrule Baseline & 4.21 & 7.85 & 11.2 \\ Ours ($\alpha = 0.5$) & \textbf{3.64} & \textbf{6.90} & 11.4 \\ \bottomrule \end{tabular}
See it in action
Real recording of CatchTeX 0.9 on a sample paper: a block diagram, a table, a plot, a reference list and an equation, each with the LaTeX it writes.
Three steps, no retyping
Stop copying numbers and symbols by hand. Point CatchTeX at the part of the paper you need.
Open the PDF or snip the screen
Drag a box over the table, formula or figure in the built-in PDF viewer, or press Ctrl+Alt+T to snip from any app.
CatchTeX reads it
Auto mode recognises what you selected. From a PDF, the characters are read from the file itself, so numbers and symbols come out exact.
Copy LaTeX that compiles
Check the rendered preview, fix anything in the code editor, and copy an Overleaf-ready table, figure or equation.
One tool for everything in a paper
Seven modes, each producing the LaTeX you would have written yourself.
Tables
Rows, columns, merged headers and maths inside cells. Cells the reader is unsure of are marked for you to check.
Equations
Display or inline, with your choice of \[ \], equation, $$ and more. Keep the paper's number as \tag.
Plots
Axes, ticks, labels and the actual data points, measured from the figure. Not a picture: real, editable data.
Diagrams
Block diagrams and flowcharts with boxes, summing junctions, arrows and labels, laid out like the original.
Text
Paragraphs and captions with maths, accents and hyphenation handled correctly.
References
Turn a reference list into BibTeX and check every entry against Crossref, dblp, arXiv and OpenAlex.
Auto mode
Just snip. CatchTeX decides whether it is a table, equation, plot, diagram or text, and tells you if a snip looks wrong.
Reference check
The one feature that uses the internet: verify references and find free PDFs. Off until you switch it on.
Why researchers use CatchTeX
Exact from PDFs
When you open the PDF, CatchTeX reads the text the file contains instead of guessing from pixels.
Checked by compiling
A complete pdfLaTeX is built in. Every result is compiled and previewed before you copy it.
Private by design
Recognition runs offline on your PC. Unpublished papers and data never leave your computer.
Honest about doubt
Uncertain table cells are highlighted and a notice explains when a snip could not be read well.
Overleaf-ready
Copies a full table or figure with caption, label and the packages it needs.
Pay once
No subscription. Buy Pro once and get every 1.x update.
Built for everyone who writes in LaTeX
From a first-year thesis to a department full of research groups.
Reuse results without retyping
Pull tables, equations and plots from papers into your manuscript, review or rebuttal in seconds.
- Exact numbers read from the PDF itself
- Plots become editable pgfplots data
- Reference lists become checked BibTeX
Finish your thesis faster
Student pricing for verified university e-mails, and free campus access at partner institutes.
- Student licence at a reduced price
- Free for 6 months at the IITs and IISc
- Works on your own laptop, no internet needed
One licence for the whole group
Lab packs and campus licences with a single invoice, for universities, libraries and coaching institutes.
- 5-seat lab packs
- Unlimited-seat campus licence
- Priority e-mail support
Simple pricing
Start free. Upgrade once if CatchTeX saves you time.
Free
For trying it out and occasional use.
- All seven modes
- 10 snips a day
- PDF viewer and screen snip
- Works fully offline
Student
For students writing reports, papers and theses.
- Unlimited snips, all seven modes
- Use on 1 computer
- All 1.x updates included
- 14-day money-back guarantee
At an IIT or IISc? It is free for 6 months.
CatchTeX Pro
For researchers and students who snip every week.
- Unlimited snips, all seven modes
- Use on 2 computers
- All 1.x updates included
- Works offline after a one-time activation
- E-mail support
- 14-day money-back guarantee
Lab pack
For a research group: one key for 5 computers.
- Everything in Pro
- Use on 5 computers
- All 1.x updates included
- Department and campus licences on request
Licences are one-time purchases with a 14-day money-back guarantee, no reason needed (refund policy). Local taxes are added at checkout where they apply.
CatchTeX for institutes
Give every student and researcher on campus the same tool. Recognition runs offline, so unpublished work stays on your own machines, which makes approval by IT and ethics committees simple.
Request a quote| Licence | For | Seats |
|---|---|---|
| Lab pack | Research groups | 5 computers · $99, buy online |
| Department | One department | Unlimited, one department |
| Campus | Universities, libraries, coaching institutes | Unlimited, whole campus |
Download CatchTeX
One installer with everything included: the recognition engine, the maths model and a LaTeX compiler. No Python, no TeX distribution, no setup.
| Version | 1.0.1 (free edition: 10 snips a day; Pro: unlimited) |
| System | Windows 10 or 11 (64-bit) · macOS 12+ on Apple silicon · Linux x86_64 (Mac & Linux downloads) |
| Disk space | About 750 MB |
| Internet | Not needed. Only the optional reference check goes online, and only if you allow it |
| Install | For your user only (no admin rights) or for all users |
| Licence | Licence agreement · Privacy · Refund policy |
Questions
Do I need to install LaTeX?
No. CatchTeX includes its own pdfLaTeX to preview and check every result. The LaTeX you copy works in Overleaf, TeX Live, MiKTeX or any other distribution.
Are my papers uploaded anywhere?
No. Recognition runs on your computer. The app goes online only for the optional reference check, and only after you allow it in Settings. See the privacy policy.
How accurate is it?
From a PDF, text and numbers are read from the file itself and are usually exact. From screenshots, CatchTeX uses offline OCR and a maths model; it marks cells it is unsure of and shows a compiled preview, so you can check before you copy. Always proofread before submitting.
Does it work on Mac or Linux?
Yes. CatchTeX 1.0.2 runs on macOS 12 or newer (Apple silicon, M1 and later) and on 64-bit Linux (AppImage or .tar.gz). The same licence works on any system. Mac & Linux downloads, install help.
Can I use Pro on my laptop and my office PC?
Yes, one Pro licence works on 2 computers. To move it to a new computer, deactivate it on an old one in Settings › Licence. After reinstalling Windows, write to us and we reactivate it.
Does Pro need the internet?
Only once per computer, to activate. A computer without internet can be activated by e-mail: copy its computer code from Help › Copy computer code and send it to us with your order key. After that CatchTeX works fully offline.
Can I get a refund?
Yes. Within 14 days of purchase, write to [email protected] with your order key and we refund you in full, no reason needed. Details in the refund policy.
Is there a free version?
Yes. The free edition has all seven modes and reads 10 snips a day, for as long as you like. CatchTeX Pro removes the limit.
Is this a subscription?
No. Pro is a one-time purchase that includes every 1.x update. A future 2.0 may be a paid upgrade, and your version keeps working.