Home > PDF Tips > How to Create Sketchnotes with Gemini: A Complete AI-Powered Tutorial

How to Create Sketchnotes with Gemini: A Complete AI-Powered Tutorial

by Rachel Jones 2026-03-13

In a world overflowing with information, sketchnotes help you process complex ideas 65% faster by combining text, icons, and layout. Google’s Gemini AI takes this further—it’s a multimodal partner that analyzes text, video, and images, then creates hand-drawn style visual summaries.

For students, professionals, or creators, learning how to create sketchnotes with Gemini streamlines your workflow and boosts clarity. This guide covers choosing the right Gemini model, building effective prompts, and editing your final output with precision.

Part 1: Preparing: How to Choose the Right Gemini Model

Part 2: Step-by-Step: How to Create Sketchnotes with Gemini

Part 3: How to Edit Gemini Sketchnotes with PDNob

Part 4: Advanced Gemini Sketchnote Techniques for Professional Results

Part 5: Gemini vs. NotebookLM — Which Tool Wins for Create Sketchnote?

Part 6: FAQs — Troubleshooting Your Sketchnote Workflow

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Part 1: Preparing: How to Choose the Right Gemini Model

Not all Gemini models handle sketchnotes equally. Here's how to select based on your needs:

Please swipe to view

Recommendation:

Start with Gemini 2.0 Flash for most sketchnote projects. Its native image generation—released March 2025—enables conversational editing where you can iteratively refine visuals through natural language prompts .

Device and Software Requirements

Minimum Setup:

• Google account with access to gemini.google.com
• Web browser (Chrome recommended for best compatibility)
• Stable internet connection

Professional Setup:

• Tablet with stylus (iPad Pro, Samsung Galaxy Tab, or Microsoft Surface) for manual refinements
• Google AI Studio account for advanced API access
• PDNob PDF Editor for post-generation editing (covered in Part 4)

Part 2: Step-by-Step: How to Create Sketchnotes with Gemini

Step 1: Content Ingestion and Analysis

For Video Content:

• Navigate to Gemini

• Activate "Thinking Mode" (the reasoning brain) for complex analysis



• Paste YouTube URL with this prompt structure:



Prompt:

"Analyze this YouTube video about [TOPIC]: [URL].

Summarize into 5-7 digestible concepts.

Identify: (1) Main thesis, (2) Supporting arguments, (3) Actionable takeaways,

(4) Key terminology, (5) Visual metaphors mentioned."

• Click the “Create image” button, paste the following detailed prompt (this is the instruction that guides Gemini to create the sketchnote):

Prompt:

"Create a hand - drawn sketchnote visual summary of these notes. Use a pristine white paper background (no lines). The art style should be 'graphic recording' or 'visual thinking' using black ink fine - liners for clear outlines and text. Use colored markers (specifically teal, orange, and muted red) for simple shading and accents. Center the main title in a 3D - style rectangular box. Surround the title with radially distributed simple doodles, business icons, stick figures, and graphs that explain the concepts. Use arrows to connect ideas. The text should be handwritten, all - caps printing, legible and organized like a professional brainstorm."

For Documents:

• Upload PDFs, Google Docs, or paste text directly
• Request structured extraction:"Break this into hierarchical concepts: main themes → sub-points → supporting details"

For Multi-Source Projects:

Upload up to 10 related sources and prompt:"Cross-reference these materials. Identify consensus views, contradictions, and unique insights from each source. Organize into a thematic outline suitable for visual representation."

Step 2: The "Magic" Visual Prompt

Once Gemini provides structured analysis, activate the Create images tool and use this proven prompt template :

Prompt:

"Create a hand-drawn sketchnote visual summary of these notes.

SPECIFICATIONS:

• Background: Pristine white paper (no lines)
• Art style: 'Graphic recording' using black ink fine-liners for outlines
• Accent colors: Teal (#008080), muted red (#CD5C5C), orange (#FF8C00) for shading
• Typography: Handwritten all-caps, 3 distinct font sizes (title > headers > body)
• Layout: Radial distribution around central title in 3D rectangular box
• Elements: Simple doodles, business icons, stick figures, arrows connecting ideas
• Aspect ratio: 16:9 for presentations / 4:5 for social media / A4 for printing

CONTENT STRUCTURE:

[Insert your organized concepts here]

ADDITIONAL INSTRUCTIONS:

• Include 1-2 visual metaphors for abstract concepts
• Highlight 3 key statistics with oversized numerals
• Use containers (circles, boxes, clouds) to group related ideas"

Pro Tip:

Gemini 2.0 Flash supports conversational refinement. After the first generation, simply type follow-up commands like"Make it landscape orientation"or"Add more white space between sections"without rewriting the entire prompt .

Step 3: Iterative Refinement

Common refinement commands:

• "Increase contrast between text and background"
• "Replace the gear icon with a lightbulb for the 'ideas' section"
• "Simplify the central concept—reduce text by 30%"
• "Add hand-drawn arrows showing flow between steps 2 and 3"

Troubleshooting: If generation fails, simplify your source content or try during off-peak hours. Gemini's image generation can timeout with extremely complex multi-source requests .

Part 3: How to Edit Gemini Sketchnotes with PDNob

When your sketchnote is on paper or a static image, these mistakes force a complete redraw. Hours of work, undone by one small error. This is the hidden frustration of sketchnoting. The format is visual and expressive, but it's also rigid. Once the ink dries—or the image exports—you're locked in. Digital sketchnotes from drawing apps aren't much better; they often export as flattened images, leaving you with the same problem.

That's where PDNob changes everything. It transforms your finished sketchnote from a static image into a fully editable file, giving you the freedom to refine, update, and perfect without starting over.

Why Choose PDNob for Editing Gemini Sketchnotes

• Accuracy: OCR technology recognizes text with over 99% precision, even from hand-drawn lettering, stylus-written notes, or mixed handwriting styles. That typo in your beautifully lettered heading? Fix it in seconds.

• Direct Text Editing: Click on any text—whether you wrote it by hand or typed it—and edit it directly. No redrawing, no white-out, no starting over.

• Element Adjustment: Move icons, resize containers, and reposition elements anywhere on the page. Decide that arrow should point left instead of right? Done.

• Layout Preservation: Your original spacing, visual hierarchy, and design integrity stay intact during editing. PDNob doesn't flatten or distort—it enhances.

• Watermark Removal: If you've exported from certain tools that add watermarks, remove them cleanly in one click.

• Multi-Format Export: Save your edited sketchnote as PNG for sharing, PDF for printing, PowerPoint for presentations, or Word for documentation.

• Multi-Language Support: Works with text in 16+ languages, perfect for multilingual sketchnote projects or language learning notes.

How to Edit Gemini Sketchnotes Using PDNob

• Open in PDNob: Launch PDNob PDF Editor and open your exported file. The software supports both direct image editing and PDF manipulation.



• Click Perform OCR at the top to start text recognition. If required, click Download to install the OCR module. Then select Scan to Editable Text OCR mode, which will extract text and separate infographic elements for editing.



Important:

In the interface, locate Document Language and select the language that matches your infographic. If this step is skipped, OCR accuracy can drop significantly, leading to errors or unrecognized text.



• Refine Text and Elements: Use PDNob's "Edit All" feature to modify any text overlays, adjust font sizes, or correct spacing issues. The OCR functionality can extract text from your infographic if you need to repurpose content.



• Enhance Visual Quality: Add professional watermarks, adjust backgrounds, or merge multiple infographics into a comprehensive presentation deck. PDNob's batch processing allows you to apply consistent formatting across multiple NotebookLM exports simultaneously.

• Export in Multiple Formats: Convert your refined infographic to Word, PowerPoint, or high-resolution images while maintaining original formatting-perfect for academic papers or business presentations.

For more informations, you can also read

How to Create Sketchnotes with NotebookLM

Part 4: Advanced Gemini Sketchnote Techniques for Professional Results

Technique 1: Multi-Modal Input Chains

For maximum accuracy, combine input types:

• Video + Transcript: Upload video URL and paste transcript separately
• Document + Audio: Pair PDF with podcast episode on same topic
• Image + Text: Upload reference sketchnote styles as visual examples

Prompt:

"Analyze the attached video and document. Synthesize into a unified sketchnote structure. Match the visual style of the reference image (hand-drawn vs. digital, color palette, icon complexity)."

Technique 2: Scenario-Specific Optimization

For Learning Notes:

Prompt:

"Optimize for memory retention:

• Use the 'method of loci' spatial organization
• Include 1 mnemonic device per concept
• Add checkmark boxes for self-testing
• Color-code by difficulty level (green=easy, yellow=medium, red=challenging)"

For Meeting Documentation:

Prompt:

"Structure as decision record:

• Left side: Discussion points with speaker initials
• Center: Decisions made (highlight in yellow)
• Right side: Action items with owner names and deadlines
• Bottom: Open questions requiring follow-up"

For Content Marketing:

Prompt:

"Design for social sharing:

• Include hook statement in top 20% of frame
• Add branded hashtag placement area
• Ensure text readability at 1080x1080px thumbnail size
• Use scroll-stopping color combinations"

Technique 3: Handling Gemini's Limitations

When text is garbled or misspelled:

Add to your prompt:"Verify all spelling before generating. Use standard English only. No invented words."

When proportions look distorted:

Specify:"Maintain 16:9 aspect ratio strictly. Do not stretch or compress elements. Use consistent icon sizing throughout."

When colors bleed together:

Request:"Use flat colors only, no gradients. Ensure 3:1 contrast ratio between text and background colors."

Part 5: Gemini vs. NotebookLM — Which Tool Wins for Create Sketchnote?

While both tools create visual notes, they serve different purposes:

Please swipe to view

Verdict

• Use Gemini when you need creative freedom and unique visual styles.
• Use NotebookLM when citations and source accuracy are paramount.

Part 6: FAQs — Troubleshooting Your Sketchnote Workflow

Conclusion

Mastering how to create sketchnotes with Gemini shifts your workflow from passive reading to active visual thinking. With Gemini 2.0 Flash’s native image generation, you can turn videos, documents, or complex topics into clear visual summaries in minutes.

Follow the workflow: Analyze → Prompt → Generate → Refine → Edit. Begin with single-source projects, then scale up as you sharpen your prompt skills. Use PDNob for professional-level edits when polish matters.Ready to begin? Open gemini, enable Thinking Mode, and transform your first document today.

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