How to convert Word to LaTeX

Key points of this article

Organize the Word files before conversion: use styles for titles, input formulas using the formula editor, and align tables without spaces, which can significantly reduce rework after conversion.
You can import .docx files in the UniDoc web editor (app.unidoc.top), check the content and export the LaTeX source code through the Word and LaTeX conversion function.
The exported .tex file must be compiled in the LaTeX compilation environment and returned to the source code for correction according to the error line number. You cannot just look at the file generation and it will be completed.
The compiled PDF needs to be compared page by page with the original Word document, focusing on checking formulas, tables, numbers and references.
When submitting a .tex source file, you must also fit the content into the template provided by the journal or conference, and recheck the format.

Many people have a paper, report or handout written in Word, but are asked to provide a LaTeX source file when submitting or typesetting. Re-typing formulas and tables is slow and error-prone, so I search for "How to convert Word to LaTeX". This article talks about the opposite: converting Word content into LaTeX source code and checking whether the conversion result can be used.

After reading this article, you will know how to use the Word to LaTeX conversion function in the UniDoc web editor to complete the conversion. What file problems should be confirmed before starting, and how to compile and check the .tex file after getting it.

How to convert Word to LaTeX? One sentence conclusion

First clean up the structure of the Word document, then import it into the editor for LaTeX export, and finally compile it in the LaTeX compilation environment and compare it page by page with the original text. The specific methods in different situations are as follows:

your situation	Recommended practices	reason
The document is mainly composed of text and a few formulas	Directly import .docx and export LaTeX source code	The structure is simple and the conversion results are usually easier to compile.
Lots of formulas and symbols	First check whether the formula is an editable formula, and then convert	Formulas in the form of screenshots or pictures generally cannot be automatically converted into LaTeX formulas and need to be re-entered.
Have a large number of tables or spreadsheets	After conversion, check table by table and manually adjust the table code if necessary.	Details such as column widths and merged cells are easily aliased during conversion.
Need to modify repeatedly between Word and LaTeX	The same source file shall prevail every time and re-export after modification.	Avoid making separate changes to the two versions, which would be difficult to merge later.
Submission only requires PDF	No need to convert to LaTeX, export PDF directly	When there is no source file requirement, one more step of conversion will only increase the chance of errors.

Before you start: Confirm these points first

Spending a few minutes checking the source files before starting can save a lot of troubleshooting time.

Whether the file format is .docx. It is recommended to save the old version of .doc file as .docx in Word first and then import it for better format compatibility.
Whether the formula is editable. Formulas entered using the formula editor can retain mathematical structure. Screenshot formulas pasted directly can usually only be processed as images after conversion.
Whether style is used in the title. The title should use styles such as "Title 1" and "Title 2". Titles that are arranged only by bolding or changing the font size will be treated as ordinary paragraphs after conversion, and the chapter level will be lost.
Whether the .tex source file is really needed. First confirm the requirements of the submitter or journal, whether you want .tex, a template, or just PDF.
How to deal with references and cross-references. The automatic numbering, field codes and references in Word may not be completely preserved and need to be checked separately after conversion and manually sorted out if necessary.

Steps to convert Word to LaTeX in UniDoc web editor

Save a copy of the .docx in Word and keep the original file as a backup to avoid being unable to roll back if there is a conversion error.
Open app.unidoc.top and enter the web page editor.
Import the .docx file, wait for the content to be loaded, and quickly read through the text, formulas, and tables to confirm that they are consistent with the original text.
Correct obvious errors in the editor, such as missing paragraphs and misplaced formulas, and then export after modification.
Select the LaTeX export function in Word to LaTeX conversion and download the generated .tex file.
If the document contains images, put the image files and .tex in the same folder, and check whether the image paths in the source code are correct.
Compile the .tex file in the LaTeX compilation environment, write down all errors and warnings, and return to the source code to correct it one by one until the compilation passes.
Compare the compiled PDF with the original Word document page by page, record the differences, and then return to .tex for modification.

If you are more comfortable operating locally, you can also go to download.omnidoc.top to download the desktop client, which includes the UniDoc document editor.

Check each item after completion

There will inevitably be deviations in machine conversion. After getting the .tex and PDF, it is recommended to check them one by one according to the table below.

Check items	How to see	What to do if there is a problem
Does the compilation pass?	Check the compilation log for error messages	Return to .tex for modification according to the error line number; the missing macro packages will be added and introduced.
official	Compare symbols, superscripts, subscripts and fractions with the original text one by one	Manually correct it in the source code and re-enter the formula if necessary
Table	Check the number of columns, headers, merged cells, and page breaks	Complex tables are reformatted using handwritten table environments
Title and number	View chapter levels, chart numbers, and page numbers	Reorganize the structure using chapter commands and unify the numbering method
Special characters	Check whether symbols like % & # _ are escaping correctly	Backslash escape is added to the source code
References	Check whether the references are correctly numbered and whether the list is complete	Use BibTeX to organize or manually check the reference list

For important content, especially data, formulas, and references, it is recommended that the author at least double-check them and not rely solely on the conversion results.

❓ Frequently Asked Questions (FAQ)

1. Can the conversion be completed without installing LaTeX?

You can convert .docx to .tex, but to view the compiled PDF, you still need a LaTeX build environment. You can choose to install it locally or use an online compilation service.

2. Do you need to download the Word to LaTeX tool separately?

Not necessarily. The web editor can be used directly; If you want to operate locally, you can download the desktop client from download.omnidoc.top. Whichever method you choose, you should first confirm that the software comes from a legitimate source.

3. What should you look for when choosing a free Word-to-LaTeX tool?

Pay attention to four key points: file size limits, whether the export result has watermarks, how to handle document content (whether uploaded or how long saved), and whether formatting and formulas are fully preserved. It is recommended to first try running a short document before deciding whether to handle the official document.

4. Can the converted .tex be submitted directly?

Usually, you can't submit directly yet. Journals or conferences usually have designated templates that need to be inserted into the template, and formatting, numbering, and references must be rechecked as required.

5. What should I do if the formula shows an error after conversion?

First, check the original text to identify where the error is, then modify the corresponding formula code in the .tex source code. If the original formula is an image, it can only be re-entered into the source code.

📝 Summary

The key to converting Word to LaTeX lies in three steps: first organize the source file, then complete the export, and finally compile and verify page by page. The more standardized the source files are, the less rework is needed after conversion.

Open OmniDoc to edit, convert, or translate your LaTeX documents