AI Proofreading Service 'Shodo' Launches PDF Support on May 29

AI proofreading service 'Shodo' launched its AI proofreading function for PDF files on Friday, May 29, 2026.

Shodo (https://shodo.ink/) is a web service that offers AI-driven writing assistance across various environments, including browsers, Word, and Google Docs. In response to high user demand, this update allows direct PDF file proofreading.

### Direct Upload and Proofreading for PDFs Users can simply upload PDF files to Shodo to execute proofreading immediately. This eliminates the manual task of copying and pasting text into other AI tools. Results are highlighted directly on the PDF view, allowing for instant identification of errors and significantly improving workflow efficiency.

### Core Shodo Features Applied to PDFs Shodo’s core generative AI capabilities for advanced proofreading and editing are now applied to PDF text. It offers high-precision suggestions based on context and factual consistency (e.g., correcting 'Sydney' to 'Canberra' as the capital of Australia, or identifying tense contradictions). Shodo provides suggestions rather than automatic rewrites to mitigate risks of unintended content modification.

Custom organizational rules and style guides (e.g., unifying 'Website' and 'Web site') are also applicable to PDFs. Since the same rule sets from Word and Google Docs are used, consistent quality management is achieved regardless of the document type.

### Supported Plans and Pricing The PDF feature is available for Business and Max plan subscribers at no additional cost. - **Business Plan**: For organizational use. 2,000 JPY/month per user (tax included). - **Max Plan**: For advanced professionals. 5,000 JPY/month per user (tax included).

### Compatible PDF Types Currently, only PDFs containing text data (Text PDFs) are supported. This includes files exported from applications like Microsoft Word. Scanned image PDFs, where text cannot be selected or copied, are currently not supported.