Antenna House

Japan-based services

Aliases / services: アンテナハウス株式会社 / Antenna House / AH Formatter / TextPorter / Office Server Document Converter / PDF Tool API
Official website: https://www.antenna.co.jp/

Each response applies only to its stated service scope. “Not listed” does not mean unpatched or unaffected.

Response status by service

Antenna House document and PDF products listed officially

Response status: Listed versions do not use PHP; not affected
Response information checked: 2026-10-27

Current re-audit: Official response verified · Research date: 2026-10-27

Document conversion and PDF development libraries.

The October26 update adds Docx to HTML and HTML on Word. Supported versions of Formatter, OSDC, TextPorter and PDF APIs are listed as not using PHP; Shunkan PDF products and Sign are limited to current versions.

Scope: RainbowServer is the former name of PDF to Office Conversion Library, not another product. Oxygen and XMetaL are distributed products, not proof about all products of their manufacturers.

What users should do

Match the exact product and version against the official table. Ask support about unlisted or older versions.

Official service URL

https://www.antenna.co.jp/

Source URLs

System product PHP vulnerability assessmenthttps://www.antenna.co.jp/news/2026/system-php-vulnerability.htmlResponse evidence

Related official sources

System product PHP vulnerability assessmentOfficial notice