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Upload a PDF diagram page
Start with a PDF page that contains a clear flowchart, process diagram, workflow diagram, or documentation diagram.
pdf to mermaid
PDF to Mermaid Converter
Upload a PDF page with a flowchart, process diagram, or workflow diagram. ChatFlowchart converts the visible structure into an editable Mermaid code draft for Markdown, GitHub, README files, and technical docs.
Convert visible PDF flowcharts and process diagrams into editable Mermaid code drafts.
Create text-based diagrams for Markdown, GitHub, README files, and technical documentation workflows.
Review node labels, branch logic, connector direction, and Mermaid syntax before publishing.
Supported inputs
PNGJPGJPEGWEBPGIFPDF
Trước và sau
From diagram image to editable Mermaid code
Upload a flowchart screenshot, diagram image, or PDF page. ChatFlowchart rebuilds the structure and generates Mermaid code you can copy into docs, GitHub, or Markdown.
Before
Diagram image or PDF page
Static visual source
After
Mermaid code and rendered preview
Code you can copy, edit, and render
Mermaid codeRendered previewMarkdown-readyEditable labels
Flat file vs rebuilt diagram
Diagram locked in an imageFlow rebuilt as Mermaid syntax
Manual redraw neededCopy code into docs
Labels are visual onlyRename labels in code
Hard to versionReview changes in text diffs
What to expect
Best for clear flowcharts and architecture diagrams. Review dense labels and branch directions before publishing.
Generate Mermaid codeHow conversion works
Start with the source file, let AI rebuild the visible structure, then review the editable result on canvas.
2
AI structures the visible diagram
ChatFlowchart detects steps, decisions, branch labels, arrows, connector direction, and layout from the PDF content.
3
Review Mermaid code
Use the generated Mermaid draft as a starting point, then review syntax, labels, branch logic, and layout direction before publishing.
Editable result
What you can edit after conversion
ChatFlowchart rebuilds the visible diagram as editable diagram objects, so the output can be reviewed and refined instead of staying locked inside a flat image.
Labels
Review and edit the visible text labels after the diagram is rebuilt.
Shapes
Move, resize, add, or remove process boxes, decision nodes, and other diagram elements.
Connectors
Reconnect arrows, adjust flow direction, and fix unclear branches when needed.
Layout
Clean up spacing, alignment, grouping, and reading order on the editable canvas.
Style
Apply sketch or modern styling before exporting the final diagram.
Trường hợp sử dụng
Dành cho nhu cầu khôi phục sơ đồ và quy trình thực tế
Mỗi trang chuyển đổi tập trung vào một mục tiêu đầu ra cụ thể, để bạn bắt đầu đúng với định dạng hoặc quy trình mình cần.
Technical docs
Convert PDF diagram pages into Mermaid drafts for developer portals, engineering docs, and architecture notes.
README workflows
Move a PDF flowchart into Mermaid source that can be reviewed and updated in README files.
Markdown documentation
Convert PDF process diagrams into code-backed diagrams for Markdown docs sites and wikis.
GitHub documentation
Turn workflow diagrams from PDFs into Mermaid drafts that fit GitHub documentation workflows.
PDF process diagrams
Create Mermaid flowchart drafts from visible process diagrams in PDFs for review and cleanup.
Chi tiết
Những điều cần biết trước khi chuyển đổi
Convert PDF diagram pages into Mermaid code drafts
PDF to Mermaid conversion is useful when a flowchart, process diagram, or workflow diagram lives inside a PDF but your team wants code-backed documentation.
ChatFlowchart analyzes the visible PDF diagram and generates an editable Mermaid draft with nodes, labels, arrows, branch text, connector direction, and layout direction where possible.
Use Mermaid for Markdown, GitHub, and README workflows
Mermaid is useful when diagrams need to live close to documentation, pull requests, README files, and Markdown-based knowledge bases.
A PDF diagram to Mermaid workflow helps turn static documentation diagrams into text-based drafts that can be versioned, reviewed, and edited like source content.
Review PDF-derived Mermaid before publishing
Generated Mermaid code should be treated as a draft, especially when the PDF is scanned, dense, low contrast, or contains tiny labels.
Review connector direction, branch labels, node text, Mermaid syntax, and layout direction before publishing the result in production documentation.
Results and quality
Supported outputs and best results
Images, screenshots, whiteboard photos, and PDF uploads are supported. Text-based PDFs can be extracted directly, while scanned PDFs work best when the diagram, labels, and arrows are clearly visible.
Đầu vào được hỗ trợ
PNGJPGJPEGWEBPGIFPDF text extraction
Đầu ra được hỗ trợ
Editable ChatFlowchart canvasPNGSVGPDFDraw.io FileMermaidShare link
Export availability follows the current ChatFlowchart canvas export options.
Editable canvas
- Free
- Yes
- Pro
- Yes
- Notes
- Core workspace for reviewing and refining the rebuilt diagram.
PNG
- Free
- Watermarked
- Pro
- No watermark / high-res
- Notes
- Best for quick sharing, presentations, and visual documentation.
SVG
- Free
- Limited
- Pro
- Yes
- Notes
- Best for scalable documentation, websites, and design handoff.
- Free
- Limited
- Pro
- Yes
- Notes
- Useful for sharing the cleaned diagram as a document.
Draw.io File
- Free
- Limited
- Pro
- Yes
- Notes
- Available for Draw.io-compatible editable diagram workflows.
Mermaid
- Free
- Copy when available
- Pro
- Advanced export
- Notes
- Useful for Markdown, GitHub, Notion, and technical documentation workflows.
Best results checklist
- Use clear images or PDF pages with readable labels.
- Crop the upload to one diagram or one process when the source contains multiple unrelated charts.
- Keep arrowheads, connector lines, and decision labels visible.
- Use high-contrast screenshots or straight-on whiteboard photos.
- Review labels, arrows, and branch directions before exporting the final diagram.
- Use one clear PDF diagram page at a time.
- Prefer text-based PDFs or high-contrast scanned pages with readable labels.
- Keep branch labels, arrows, and connector direction visible.
- Tell the AI if you prefer TD, LR, BT, RL, or another Mermaid direction.
Limitations and cleanup
- Dense diagrams may need manual cleanup after the first AI rebuild.
- Blurred, cropped, or low-contrast text can reduce label accuracy.
- Scanned PDFs and image-style PDFs work best when the target page is clear.
- The result is a rebuilt editable diagram, not a recovery of hidden source metadata.
- Connector direction, branch labels, and complex layouts may need review before sharing.
- Generated Mermaid should be reviewed and refined before publishing or committing to documentation.
- Scanned PDFs, tiny labels, dense diagrams, multi-page flows, complex layouts, and low-contrast pages may require manual cleanup or simplification.
After conversion
Continue from the converted diagram without rebuilding the file.
Open editable canvas
Continue refining the rebuilt diagram with manual edits or AI chat.
Export target files
Export the finished diagram as PNG, SVG, PDF, Draw.io, Mermaid, or a shareable link when available.
Fix with AI chat
Ask ChatFlowchart to rename labels, adjust steps, clean up layout, or correct arrows.
Report conversion quality
Mark whether the result looks good or needs cleanup so weak inputs are easier to diagnose.
FAQ
Câu hỏi trước khi tải lên
Convert a PDF diagram into Mermaid code
Upload a PDF page and turn the visible diagram into an editable Mermaid draft for documentation, review, and version control.