What inputs does Document Semantic Preprocessor support?
This tool currently accepts PDF, Word, PowerPoint, Excel, CSV, HTML, image, LaTeX. After upload, Kitlot passes the file through Docling for parsing and conversion.
Document Semantic Preprocessor
Convert documents into a compact semantic preprocessing payload.
ProductivityAPIStatic billingFree
Local DoclingStructured output
Selected file
One file at a time. Keep uploads under 20MB.
Accepted formats: PDF, Word, PowerPoint, Excel, CSV, HTML, image, LaTeXPrimary output: structured JSON
About this tool
Convert documents into a compact semantic preprocessing payload.
ProductivityAPIStatic billingPublic
Tool facts
Execution type: API
Credit cost: Free
Billing unit: 1 document
Supported locales: English, Chinese
Last updated: Apr 14, 2026
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Published articles and notes currently linked to this tool.
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Frequently asked questions
What does Document Semantic Preprocessor return?
The primary output is structured JSON. Returns a lighter JSON payload for AI and RAG preprocessing.
How to use this tool
1
Choose a file
Open Document Semantic Preprocessor and choose one supported document.
2
Run
Kitlot sends the file through the local Docling conversion flow.
3
Review and export
After processing, review, copy, or download the structured JSON result.