E-Guardian Inc. (https://www.e-guardian.co.jp/eng/; Minato-ku, Tokyo; President: Yasuhisa Takatani; hereinafter "E-Guardian") announces the development of "Typesetting Checker," a tool that streamlines quality checks for multilingual content by combining AI technology with the company's proprietary operational know-how in localization, culturalization, and multilingual support services.

E-Guardian is a comprehensive internet security company dedicated to creating a safe and secure online world. We offer one-stop support for a wide range of security challenges, providing services that include post monitoring, identity verification, ad review, social listening, and cybersecurity, extending even into the metaverse domain.
In recent years, Japanese content has gained popularity worldwide, with overseas sales approximately tripling over the ten-year period from 2013 to 2023*. Against the backdrop of this remarkable market growth, the multilingual expansion of all types of content—ranging from manga and anime to websites and publications—has now become an essential component of corporate global strategy.
Meanwhile, "quality checking"—which ensures the final perfection of content by preventing typos, omissions, and layout corruption—is an extremely critical process. However, this meticulous verification work requires enormous man-hours when done manually and is prone to human error, posing a major barrier to delivering Japan's prized content to the world.
To address these challenges, E-Guardian has developed "Typesetting Checker," a new tool for checking multilingual content quality. By combining AI with our proprietary operational expertise built over many years, this tool enables us to perform post-translation quality control more accurately and efficiently across our localization, culturalization, and multilingual support services.
This tool is equipped with AI-powered difference detection and text recognition capabilities. By comparing pre- and post-translation files (in formats such as PDF, JPG, and PNG), it automatically detects even the slightest discrepancies in font size or layout in documents like manuals and websites with high precision. The tool streamlines the review process through a simple, intuitive interface that allows users to simultaneously view and navigate both comparison screens. Furthermore, an annotation function facilitates smooth communication between team members and clients by enabling the direct sharing of correction instructions and comments directly on the files. As a result, in tasks such as manga quality control, for example, checking time per chapter can be reduced from the standard 40 minutes to approximately 25–30 minutes (depending on the title), achieving up to a 37% reduction in man-hours.
Furthermore, this tool is designed for versatility across all media, including manga, anime, websites, and apps. When integrated with our generative AI translation system, "EG Trans Works," it enables a seamless, end-to-end workflow from translation through quality control—empowering your global expansion with both superior quality and speed.
By leveraging this tool to ensure accurate and efficient quality control, our goal is to contribute to delivering Japan's world-class content to a global audience, all while maintaining its inherent quality and passion.
E-Guardian will continue to dedicate itself to delivering specialized, high-quality services. By developing services that enrich lives and offer greater convenience, we will work toward the realization of our mission, "We Guard All."
※[METI] Entertainment and Creative Industries Strategy: A 5-Year Action Plan Toward 20 Trillion Yen in Overseas Content Sales(Ministry of Economy, Trade and Industry)
【Overview of Multilingual Content Quality Check Tool: "Typesetting Checker"】
https://www.e-guardian.co.jp/eng/service/ai/typesetting-checker/
■Key Features
・Simultaneous Dual-Screen Comparison
View two files (PDF, JPG, PNG, etc.) at once in a side-by-side layout. Both screens scroll simultaneously, making it easy to compare original documents with translations, or to check changes between different file versions.
・Auto-detects minor variances
By automatically detecting and color-highlighting discrepancies between two images, the AI captures even the slightest differences that are easily overlooked manually—like changes in website UI or manual revisions—helping to reduce errors.
・Seamless collaboration among operators
The annotation feature allows you to write instructions directly on the screen using red frames or text. This clarifies specific instructions, such as "please fix this part," and ensures smoother communication within the team.
・Detects small print and speech bubble text
The tool features AI-powered Optical Character Recognition (OCR) capable of reading text in images. It can detect everything from tiny, easily missed characters to text contained within manga speech bubbles.
・Simple keyboard controls
In addition to mouse controls, the tool offers a full range of keyboard shortcuts to speed up work—such as navigating pages with arrow keys or executing the AI difference detection with a single key press. This significantly reduces checking man-hours.
■Usage Scenarios
・Checking font size, speech bubbles, layout, and fonts in manga, picture books, and children's books
・Verifying revisions, charts/graphs, and annotations in academic books, specialized texts, and instruction manuals
・Checking changes to user interfaces (UI) for websites and applications, etc.
■Dashboard Interface

【E-Guardian Group】
Founded in 1998. Listed on the First Section of the Tokyo Stock Exchange (TSE) in 2016 and migrated to the TSE Prime Market in 2022. E-Guardian is a comprehensive internet security company providing end-to-end services related to internet safety, including net patrol, customer support, debugging, and vulnerability assessments.
Including partners, the E-Guardian group boasts one of the industry's largest operational networks, with 19 locations across 8 cities in Japan and 3 cities overseas. Recently, the company has engaged in service development that captures current trends, such as entering the Fintech and IoT industries and contributing to work style reform through RPA (Robotic Process Automation) development, all while continuing to protect the safety and security of the internet.
■E-Guardian Inc.
| Representative: | Yasuhisa Takatani, President and Representative Director |
| Location: | 8F Toranomon Kotohira Tower, 1-2-8 Toranomon, Minato-ku, Tokyo, Japan |
| Established: | May 1998 |
| Capital: | JPY 1,967 million (as of September 30, 2025) |
| Business Activities: | Blog, SNS, & bulletin board planning and consulting; real-time post monitoring; user support;online game customer support; compliance measures, reputation & trend surveys; community site planning, site operation agency services, ad review agency services; staffing services. |
| URL: |
【For further inquiries, please reach out to】
E-Guardian Inc.
Public Relations Department
E-mail:info@e-guardian.co.jp