How to translate Thai documents: steps from uploading to exporting

Key points of this article

First determine whether the document is an electronic version with optional text or a scanned copy. The preparations before processing are different for the two.
After uploading, confirm that the source language is Thai and the target language is Simplified Chinese, and then select the output method.
If you need to check with the original text, choose bilingual comparison; if you just want to read through the Chinese text, choose translation only.
There are no spaces between Thai words. Thai documents commonly use Buddhist calendars. After exporting, you should focus on checking the dates, numbers and proper nouns.
Scanned Thai PDFs can be uploaded directly, but recognition errors require manual spot checks.

If you have a Thai contract, paper or product manual in hand, and you need to understand it as soon as possible, the most direct way is usually to translate it into Chinese. The problem is that the way Thai is written is very different from the Latin alphabet: there are no spaces between words, the fonts and character encodings of different documents may be inconsistent, and it is common to mix Arabic numerals, Thai numerals, and Buddhist years in the same document. If these details are not handled well, the translation will appear messy or the key information will be misread.

This article follows the actual operation sequence: first determine the file type, then upload it to OmniDoc, set the language, select the output method, download the results, and finally explain how to check item by item after exporting. After reading it, you should be able to independently complete a Chinese translation of a Thai document and know which parts need to be read again manually.

How to translate Thai documents into Chinese? One sentence conclusion

Direct answer: First check whether the file is an electronic version, and then check whether the translation is used for comparative reading or just for full reading, then upload the file, set Thai to Simplified Chinese, and select the output format according to the purpose.

your situation	Recommended practices	reason
Electronic PDF, need to be checked against the original text	Bilingual comparison output	Thai and Chinese paragraphs are placed side by side to facilitate paragraph-by-paragraph comparison.
Electronic PDF, just want to understand the main idea quickly	Translation output only	The layout is cleaner and the original text is not disturbed when reading.
Scanned PDF or photographed document	Upload directly and choose bilingual comparison	Text cannot be selected directly in the scanned document, so it is convenient to spot-check the recognition results.
Word or PPT, intend to continue to modify or print	Only the translation is output, check the layout after downloading	The layout is clean and tidy. Make sure it is correct before deciding whether to make adjustments.

Before you start: Confirm these points first

Whether the document is an electronic version or a scanned copy. Use the mouse to select a piece of text in the PDF: if it can be selected, it is an electronic version; if it cannot be selected, it is mostly a picture or scanned copy. The electronic version has a more direct source of text, while the scanned version requires a few more paragraphs to be checked.
Is there any Buddhist calendar date in the document? Thai official documents and many contracts commonly use the Buddhist calendar, which is 543 years longer than the Gregorian calendar. For example, 2024 in the Gregorian calendar corresponds to 2567 in the Buddhist calendar. First find a few dates in the original text and mark them. Then you can check whether the translation has copied the wrong year.
Whether the Thai font is displayed normally. If the Thai text in the original text is displayed as boxes or garbled characters, it means that the font is missing, and there will most likely be problems with the translation. First use the reader to confirm that the original text is displayed normally before uploading.
Confidentiality requirements. Contracts, medical records, and internal materials often contain sensitive information. Before uploading, confirm whether it is allowed to be sent to the online tool for processing. If necessary, only translate the non-sensitive parts, or confirm with the person in charge of the file first.
Whether the layout needs to be retained. For tables-intensive reports and formal documents with headers and footers, the format is very important to readers; for text-based information, only the translation is usually enough.

Steps to translate an entire Thai document in OmniDoc

Open omnidoc.top and enter the document translation function. You can operate it on the web page, no need to install software first.
Upload Thai files. Supports PDF (electronic and scanned versions are available), Word, PPT, Excel, EPUB, Markdown and other formats, select the prepared one to upload.
Set the source language to Thai and the target language to Simplified Chinese. If the page provides text style options, you can choose according to academic, legal, medical, technical, business, etc. types, which will help to unify the terminology.
Select the output method. If you need to compare the original text, choose bilingual comparison; if you only want to read Chinese, choose translation only.
Submit the task and wait for completion. Long files will take longer, download them after they are completed without staring at the page.
Download the translation. Tables, formulas, and pictures will be retained with the document, but they must still be checked item by item in the next section.
Edit when you need to change individual text. The desktop client's PDF editor can directly modify paragraph text, or export it to Word and then edit it.

Check each item after completion

After getting the translation, do a quick check first, and then do an intensive reading of important passages.

Check items	How to see	What should you do if there's a problem?
Format and tables	Refer to the original text and flip through page by page to check whether the table columns, headers, footers, and paragraphs are misaligned	Compare with bilingual versions; If misalignment is severe, switch to translation only, or manually adjust in the editor
Date and number	Find the Buddhist calendar year you previously marked, convert it to the Gregorian calendar, and verify	Specify the Gregorian calendar conversion in the translation and confirm which date the contract or document should be used
Proper nouns, personal names, company names	Check whether the same name is written consistently throughout the text	Manually edit each part to avoid two translations for the same name or institution
Amount, time limit, clause number	Compare each item with the original text, and verify the numbers and units	For content involving contractual obligations or legal liabilities, have someone who understands Thai or a related professional review it
Recognition quality of scans	Randomly select a few segments and compare them with the original images	When there are many errors, OCR is performed on the scanned document first, followed by re-translation and verification

Machine translation inevitably contains errors. For any content related to rights, obligations, amounts, and medical information, please refer to the original text and confirm it only after being confirmed by someone who understands Thai.

❓ Frequently Asked Questions (FAQ)

1. How do you use Thai document translation? Do you need to install software first?

No need. Simply upload files, set the language, and download the results directly on the omnidoc.top webpage to complete basic translation. When you need to use features like PDF editing, signing, or OCR, install the desktop client.

2. Can Thai scans be directly translated?

You can directly upload a scanned PDF version. The text in the scanned copy needs to be recognized first, and errors will be carried into the translation. Therefore, choosing bilingual comparison and randomly checking several paragraphs with the original image is more reliable.

3. What are the differences between web and desktop clients?

The web version is suitable for the basic process of uploading, translating, and downloading. On top of that, the desktop client also offers a PDF editor that allows you to edit paragraph text, fill out forms, shade out, adjust pages, export PDFs to Word, Excel, or PPT, and compare two PDFs.

4. Do Thai documents need manual proofreading after being translated into Chinese?

Yes. Translations can help you quickly grasp the main idea, but key details such as contract terms, amounts, dates, and medical information need to be reviewed against the original text, and professional confirmation is required if necessary.

5. Can Thai-language files containing sensitive information be uploaded to online tools?

Before uploading, confirm the confidentiality requirements of the organization or the individual. If unsure, only the insensitive chapters can be translated, or the person in charge can decide whether to upload the complete file.

📝 Summary

The key to translating Thai documents is to first determine whether the document is an electronic version or a scanned copy, then choose between bilingual translation or translation only based on the intended use. After exporting, carefully check the layout, Buddhist calendar dates, proper nouns, and monetary clauses to make your translation more reliable.

Open OmniDoc, upload the document, and start translating