AI Proofreading Service 'Shodo' Launches PDF Support on May 29
The AI-powered writing assistant Shodo introduced a direct PDF proofreading feature on May 29, 2026. Users can upload PDFs to get context-aware AI suggestions highlighted directly on the document. Available for Business and Max plans.
📋 Article Processing Timeline
- 📰 Published: May 29, 2026 at 23:37
- 🔍 Collected: May 29, 2026 at 14:57
- 🤖 AI Analyzed: May 29, 2026 at 15:02 (4 min after Collected)
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.
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.
FAQ
When can I start using Shodo's PDF proofreading function?
It has been available since May 29, 2026.
What types of PDF files are eligible for proofreading?
Only 'text PDFs' containing text data are supported. Image PDFs scanned by a scanner are not supported at this time.
Is there an additional fee for using this?
If you have a Business Plan (2,000 yen per month) or a Max Plan (5,000 yen per month), you can use it without any additional fees.
How can I check the proofreading results?
Correction suggestions are directly highlighted on the screen of the PDF uploaded to Shodo.
What kind of feedback does AI proofreading provide?
In addition to simple typos, it also points out contradictions in tense, capital city errors, and checks against custom notation rules set by your organization.