LT-TM to Unicode Tamil Font Conversion
Tamil, one of the world's oldest classical languages, has a rich literary and cultural heritage.
Over the years, Tamil text has been typed and published using various non-Unicode fonts, including LT-TM.
LT-TM font was commonly used in newspapers, books, government documents, and educational materials.
With the global adoption of Unicode as a standard, converting LT-TM text to Unicode has become essential
for digital compatibility, accessibility, and professional publishing.
Understanding LT-TM Tamil Font
LT-TM is a non-Unicode Tamil font that maps Tamil letters to English keyboard keys. Unlike Unicode,
which assigns a unique code to each Tamil character, LT-TM uses a custom keyboard layout. For example,
pressing "k" might display "க" depending on the LT-TM mapping. Without the font installed, text appears
as unreadable English letters or symbols, which limits its usability in modern digital systems.
LT-TM font became popular due to its simplicity, speed of typing, and compatibility with desktop publishing
software. Many newspapers, books, and official documents were created using LT-TM before Unicode became standard.
Why Convert LT-TM to Unicode?
Converting LT-TM text to Unicode is necessary for several reasons:
- Cross-Platform Compatibility: Unicode ensures Tamil text can be read on all modern devices and operating systems without installing LT-TM font.
- Web and Mobile Accessibility: Websites, mobile applications, and social media platforms primarily support Unicode Tamil.
- Editing and Archiving: Unicode text is easier to store, search, edit, and manage digitally.
- Professional Publishing: Newspapers, magazines, books, and government documents require Unicode for standardization.
- Long-Term Preservation: Unicode ensures that Tamil content remains readable in future technologies.
Challenges in LT-TM to Unicode Conversion
Converting LT-TM font text to Unicode comes with several challenges:
- Encoding Differences: LT-TM maps Tamil letters to English keys, while Unicode uses a universal encoding system.
- Compound Characters: Ligatures like க்ஷ, ஸ்ரீ, and றை need accurate mapping to Unicode.
- Vowel Signs: Correct placement of vowel markers (உயிர்மெய்கள்) is essential to maintain proper spelling.
- Formatting Issues: Bold, italics, and spacing may not transfer correctly during conversion.
- Font Dependency: LT-TM text is unreadable without the font, making conversion necessary for modern digital use.
Methods of LT-TM to Unicode Conversion
1. Manual Typing
Retyping LT-TM text manually using a Unicode Tamil keyboard ensures accuracy but is time-consuming
and impractical for large documents or bulk conversion projects.
2. Online Conversion Tools
Online converters allow users to paste LT-TM text and instantly generate Unicode output. These tools
are convenient for small to medium projects, offering speed and ease of use without requiring technical expertise.
3. Desktop Publishing Software
Professional DTP software such as InPage or CorelDRAW often includes LT-TM to Unicode conversion features.
These tools are widely used in newspapers, magazines, and official documents to maintain accuracy and formatting.
4. Automated Scripts
Organizations handling large volumes of LT-TM text can use automated scripts written in Python, JavaScript,
or other programming languages. This allows efficient bulk conversion while preserving compound characters,
vowel signs, and formatting.
Step-by-Step Conversion Process
- Copy the LT-TM font text you want to convert.
- Open an online converter or desktop software that supports LT-TM to Unicode conversion.
- Paste the text into the input field.
- Click the Convert button to generate Unicode Tamil text.
- Copy the converted Unicode text into a word processor or document editor.
- Verify compound characters, vowel signs, and formatting for accuracy.
Advantages of LT-TM to Unicode Conversion
- Cross-Platform Compatibility: Unicode text can be read on all devices without additional fonts.
- Web and Mobile Support: Unicode ensures Tamil content displays correctly on websites, apps, and social media platforms.
- Editing and Searching: Unicode text is easy to edit, search, and archive digitally.
- Preservation: Ensures long-term readability and digital preservation of Tamil content.
- Professional Standard: Aligns with modern publishing, education, and government requirements.
Applications of LT-TM to Unicode Conversion
- Newspapers and Magazines: Convert legacy print content to Unicode for digital and online publishing.
- Books: Textbooks, novels, and educational materials can be converted for modern publishing workflows.
- Education: Exam papers, research documents, and academic materials require Unicode for consistency.
- Government Documents: Official circulars, notifications, and archival records must be in Unicode.
- Websites and Mobile Apps: Unicode ensures Tamil content is accessible across devices and platforms.
Best Practices
- Keep a backup of the original LT-TM text before conversion.
- Use trusted conversion tools or professional software for accurate mapping.
- Proofread converted text for compound letters and vowel signs.
- Test Unicode output across multiple devices and browsers for consistency.
- Document the conversion workflow to maintain standardization for future projects.
Future of Tamil Font Conversion
Even though Unicode has become the global standard, LT-TM and other legacy fonts still exist in archives,
printed books, and older publications. Advances in AI-assisted conversion tools, automated scripts, and
transliteration software make LT-TM to Unicode conversion faster, efficient, and accurate. This ensures
seamless integration of Tamil content across digital and print platforms while preserving the language
for future generations.
Conclusion
LT-TM to Unicode Tamil Font Conversion is essential for modernizing legacy Tamil text while maintaining
readability and authenticity. Converting LT-TM text to Unicode ensures cross-platform compatibility, web
and mobile accessibility, and adherence to professional publishing standards. By using reliable conversion
tools, desktop software, or automated scripts, publishers, educators, and government institutions can
effectively transform older Tamil documents into Unicode, preserving and promoting the Tamil language
in the digital era.