OmniDocHow to deal with garbled characters after translation of Thai documents: font and encoding troubleshooting
Boxes, question marks or garbled characters appear after Thai is copied to Word. This is mostly caused by missing fonts, source file encoding or pasting methods. This article provides a checklist in order of easier things first and harder things later, and explains how to deliver the entire document to avoid making the same mistake again.
Key points of this article
- Thai is displayed as a box or question mark. Usually the font does not contain Thai glyphs. This can be solved by changing to a font that supports Thai and setting a complex font.
- Characters like "ส" that fill the screen are probably UTF-8 content that has been read in the wrong encoding, and you need to go back to the source file to confirm the encoding.
- Thai text copied directly from PDF is easy to be confused. Paste it into a plain text editor first to determine whether the problem lies in the source file or Word.
- The scanned PDF does not have a text layer that can be copied. You should perform OCR recognition first and then check the recognition results.
- Keep the entire document format when delivered, which is less likely to produce garbled characters than copying and pasting section by section.
After the Thai document is translated, many people will copy the translation into Word and continue to modify it. As a result, the paragraph becomes a row of boxes, question marks, or a string of incomprehensible Latin letters. Most readers who search for "How to solve the garbled text when copying Thai to Word" are stuck at this step: the content has been translated, but cannot be used directly.
This article is for people who need to put Thai translation into Word and continue editing or printing. After reading, you can first see which category the garbled characters belong to, then check the font, encoding and pasting method in order, and finally know how to deliver the file more securely.
Thai is a complex text. The glyphs will change according to the characters before and after it. The tone symbols and vowel symbols must be stacked above or below the consonants. The requirements for fonts and typesetting engines are higher than those for Latin letters. Therefore, the same text may appear normal on one computer, but may appear garbled on another computer. The following method does not depend on a particular software and is suitable for most versions of Word.
The Thai language is garbled when copied to Word. How to solve it? One sentence conclusion
First determine what the garbled code looks like, and then deal with the symptoms: change the font for font problems, return to the source file for encoding problems, and use the overall document delivery for copy problems. In most cases no re-translation is required.
| your situation | Recommended practices | reason |
|---|---|---|
| Thai text appears as a box or question mark | Change to a font that supports Thai and set complex fonts | The current font lacks Thai glyphs and Word cannot display the corresponding characters. |
| Characters such as "ส" and "า" appear | Go back to the source file to confirm the encoding and save it again with UTF-8 | The bytes are interpreted according to the wrong encoding, and no matter how many fonts are changed, it will not work. |
| The glyphs are normal but the vowels and tone symbols are misplaced. | Check whether the font fully supports Thai and confirm that the language is set to Thai | Symbol stacking depends on font and text layout settings |
| The whole paragraph is messed up after copying from PDF | Paste it into a plain text editor first and use the entire document if necessary. | There may be a problem with the font mapping of the original PDF, and the copied characters themselves are incorrect. |
| Scanned PDF cannot copy text | Do OCR recognition first, and then check the Thai recognition results | The scans are images and there is no text layer that can be copied. |
First determine what kind of problem it is
Before troubleshooting, first look at the shape of the garbled code, which can basically point to the cause.
| symptoms | Common causes | How to confirm |
|---|---|---|
| The entire paragraph is a box, or each character is a question mark | The font does not contain Thai glyphs, or Word treats Thai as another language. | Open the same paragraph in another font that supports Thai. If it returns to normal, it is a font problem. |
| The screen is filled with Latin characters starting with "à¸" and "à¹" | UTF-8 bytes are read as Latin-1 or Windows-1252 | Check the encoding of the source file or original exported file to see if it has been converted twice. |
| The glyphs are recognizable, but the tones and vowels are in the wrong position. | The font lacks positioning information for Thai combination symbols, or the text direction and language settings are incorrect. | Paste the text separately into a paragraph in another font and see if it changes |
| After copying, only some paragraphs are garbled. | The original text is mixed with fragments of other encodings, or some characters come from special symbols. | Check paragraph by paragraph and note the common features of the erroneous paragraphs |
| It works fine after pasting, but garbled after saving or reopening. | File save format or compatibility mode causes font substitution | Save as .docx and verify that no legacy format or compatibility mode is used |
Check and repair item by item
It is recommended to check in the following order and do the low-cost inspection first. After each step, check to see if the garbled characters disappear before deciding whether to continue.
- First confirm whether the Thai text library is available. Find a font in the system font list that is marked as supporting Thai, and change the entire translation to this font. If the box disappears, it means that the original font lacks Thai glyphs.
- Set complex fonts. Thai is a complex language, and simply changing the font to "Chinese" or "English" usually does not take effect. In the font settings of Word, find the font options for complex texts, and set them to fonts that support Thai.
- Check the language settings. Select the Thai paragraph and set the proofing language to Thai. When the language setting is wrong, line breaks and symbol arrangement may be abnormal, especially since Thai does not have space word segmentation, and line breaks depend on language rules.
- Use plain text to determine the source of the problem. Paste the garbled paragraph into Notepad or other plain text editor. If the text is garbled in the plain text, the problem lies in the source file or the copy process; if the text is normal in the plain text, go back to Word to troubleshoot the format.
- Switch to paste without format. Use "Paste Special" in Word, select unformatted text, remove the hidden font and style information brought by the source file, and then reset the font.
- Check the encoding. If the characters appear in a pattern such as "à¸", it means that the UTF-8 content is read in the wrong encoding. Go back to the source file, resave it with an editor that supports UTF-8, and then import or paste it. Subtitle files, plain text, and Markdown files are especially prone to this.
- Do OCR on the scanned document first. If text cannot be selected in the PDF, it means it is an image. First use OCR to recognize, and then check the recognized Thai characters, especially numbers, amounts and proper nouns.
- Switch to full document delivery. If the above steps still don't work, do not copy section by section and process the entire document in its original format.
Font issues and encoding issues should be handled separately
Font problems are usually "glyph does not exist", which appears as a box or question mark. Just change the font. The encoding problem is "byte interpretation error", which is manifested as random strings of Latin letters. Changing the font is useless. You must go back to the source file to correct the encoding. If the two are mixed together for troubleshooting, it is easy to make changes more confusing, so look at the symptoms first before taking action.
PDF copy issues should be looked at separately
The font mapping in some PDFs is incomplete, and what appears to be Thai is a different batch of characters copied. This kind of problem cannot be fixed by Word. The PDF should be translated or converted as a whole instead of manually copied from the reader.
How to avoid it happening again next time
Prevention is less laborious than repairing afterwards. The following practices apply to most Thai translation scenarios.
- Send the entire document uniformly. Directly obtain document formats such as .docx after translation, retain paragraphs, tables and layouts, and avoid copying and pasting.
- Confirm the font in advance. Before you start editing, set the complex font of the document to a font that supports Thai to avoid having to change every subsequent paragraph.
- Keep original files. When a problem occurs, being able to go back to the source file and the original translation and process it again is more reliable than repairing a damaged copy.
- Continue modifications in the UniDoc web editor or desktop client. Both of these places can process Word-compatible documents, which are suitable for editing based on translations and reducing cross-software copying.
- Manual verification of important content. There may be wording deviations in machine translation. Contracts, documents, drug descriptions, etc. should be checked by someone who understands Thai before publishing.
❓ Frequently Asked Questions (FAQ)
1. When Thai text is copied to Word, it turns into a question mark. Is the file damaged?
Usually not. The question mark probably means that the current font lacks Thai glyphs, or Word does not recognize this text as Thai. First change to a font that supports Thai, and then check the font settings for complex languages.
2. Why is a string of characters starting with"à¸"copied?
This is UTF-8 content being read in the wrong encoding. Fonts cannot solve this problem, you need to go back to the source file and resave or export it in UTF-8.
3. Can the Thai garbled characters copied from PDF be repaired directly?
Sometimes it works, but it's not stable. If there is a problem with the font mapping of the PDF itself, the copied characters will be incorrect. A safer approach is to process the PDF as a whole, or reorganize it while still being able to see the original text. Scanned PDFs need to be OCRed first.
4. What should I do if the font is still garbled?
First use a plain text editor to determine whether the problem is in the source file or Word. If the plain text is garbled, check the encoding and original file; if the plain text is normal, check the pasting method and paragraph format. If necessary, delete the source format and reset the font.
5. Does the translated Thai text need to be manually checked?
want. Both machine translation and OCR can make mistakes, especially with numbers, amounts, names, drug names, and legal terms. Ordinary text that has nothing to do with the topic can be quickly browsed, and important content should be checked item by item.
📝 Summary
When Thai text is garbled after being copied to Word, it is mostly caused by problems with fonts, encoding or copying methods. It can be solved by classifying the symptoms and troubleshooting them one by one. When encountering a problem, first determine whether it is a box or an error code, and then check the font, language and encoding in sequence. In the future, try to deliver the entire document instead of copying it piece by piece, which can significantly reduce the recurrence of garbled characters.
