Frequently Asked Questions
Everything You Need to Know
Getting Started
How do I convert NotebookLM slides to PowerPoint?
Upload your NotebookLM PDF to DeckEdit, click Convert to PPTX, and download your editable PowerPoint file in seconds. NotebookLM generates a maximum of 20 slides per deck, well within DeckEdit's 50-page limit. Everything runs locally in your browser. Since NotebookLM added native PPTX export on February 18, 2026, DeckEdit remains the better choice for fully editable, element-level text boxes with zero usage limits. Google renamed NotebookLM to Gemini Notebook on July 16, 2026. It is the same product, and DeckEdit works with decks exported under either name.
Read the full comparison: NotebookLM to Editable PowerPoint →What's the difference between the two modes?
PPTX Conversion creates an editable PowerPoint with real text boxes. Image PDF Edit lets you modify text directly and export in the original format. Choose PPTX Conversion for presentations, Image PDF Edit for fixing text in the original document.
What file formats are supported?
PDF, PNG, JPEG, GIF, and WebP. Maximum 30MB, up to 50 pages per document.
How long does conversion take?
Under 30 seconds for single-page slides. Multi-page PDFs (up to 50 pages) typically finish within 5 minutes. Speed depends on your device since everything runs locally.
Do I need to create an account?
No. Zero registration required. No email, no password, no sign-up. Open the page, drop your file, and convert. No usage limits or trial periods.
How do I download NotebookLM slides as PowerPoint?
Export your slides as PDF from NotebookLM (or take screenshots), then upload to DeckEdit. It converts them into a fully editable PowerPoint file in about 60 seconds, all locally in your browser. NotebookLM does not offer a direct PowerPoint download.
How do I turn NotebookLM slides into editable PowerPoint?
Open DeckEdit in your browser, drop your NotebookLM PDF (or screenshots) onto the upload zone, and click Convert to PPTX. DeckEdit reads every slide locally, rebuilds each text element as a real PowerPoint text box, and gives you a .pptx file you can open and edit in PowerPoint, Keynote, or Google Slides. No account, no upload, no cost.
How can I make NotebookLM slides editable?
NotebookLM exports slides as static images that PowerPoint cannot edit. DeckEdit makes them editable by detecting every text region with on-device OCR and rebuilding each one as a real text box in a fresh .pptx file. Open the result in PowerPoint and start editing — change wording, fonts, colors, or layout.
Is there a free tool to edit NotebookLM slides without uploading them?
DeckEdit is that tool. It is free with no account, runs entirely in the browser, and never uploads your file to any server. Models are downloaded once and cached, so subsequent edits work fully offline.
How do I open a NotebookLM PDF in PowerPoint as editable slides?
PowerPoint cannot directly open NotebookLM PDFs as editable slides because the text is rendered as part of the image. Convert the PDF with DeckEdit first — it produces a .pptx where each slide opens in PowerPoint with editable text boxes, ready to modify.
Privacy & Security
Is my data safe with DeckEdit?
Yes, your files never leave your device. All OCR and editing happens 100% in your browser using local AI. Nothing is uploaded to any server.
Does DeckEdit collect any analytics or tracking data?
Only anonymous usage statistics: Google Analytics 4 site-wide (pages visited, session duration, approximate location), plus Microsoft Clarity aggregate interaction data on public pages only. Clarity is never started on the editor or the decks library. Your files and document content are never sent to any analytics service or server.
Why does the conversion take a few seconds?
Because processing runs on your device, not cloud servers. This is by design: local processing keeps your files private. Speed depends on your device and PDF complexity.
Features & Accuracy
How to edit unselectable text in NotebookLM slides?
Upload your slide to DeckEdit. It uses local OCR to detect and recognize all text, even unselectable text in images or PDFs, letting you edit directly or export to PowerPoint.
Can I export NotebookLM to PowerPoint?
Yes. Upload your NotebookLM PDF or screenshot, click Convert to PPTX, and get an editable PowerPoint file where every text element is a real text box. DeckEdit is specifically designed for this.
Can I modify text in NotebookLM generated PDFs?
Yes. Upload any NotebookLM output to DeckEdit, edit text directly in the browser, and download in the original format. All processing is local, with no server uploads.
How accurate is the OCR text detection?
95%+ accuracy on clean, high-resolution slides. DeckEdit uses state-of-the-art AI models optimized for document layouts. For best results, export NotebookLM slides as PDF rather than screenshots.
Does DeckEdit preserve formatting and layout?
Yes. Original slide backgrounds, graphics, and icons are preserved. Each detected text element is placed in an editable PowerPoint text box at the correct position with matched font sizes and colors.
Can I transform a NotebookLM PDF into a real .pptx file?
Yes. DeckEdit transforms image-based NotebookLM PDFs into native PowerPoint files where every headline, bullet, and caption is a separately editable text box, not a flattened picture. The original backgrounds and graphics are preserved so the deck still looks like the AI-generated original.
What is the best way to recreate NotebookLM slides in PowerPoint?
The fastest way is DeckEdit. Instead of manually retyping each slide, upload the NotebookLM PDF, let DeckEdit reconstruct the layout in about 60 seconds, and download a .pptx that mirrors the original — backgrounds preserved, every text element editable.
Can I rebuild a NotebookLM deck so I can change the wording?
Yes. DeckEdit rebuilds every NotebookLM slide as a fresh PowerPoint slide where the wording lives in real text boxes. Click any line to retype, rephrase, or translate it — exactly the editing workflow PowerPoint normally gives you.
Comparisons
Why choose DeckEdit over desktop tools like Tenorshare PDNob?
DeckEdit requires no installation, works in any browser, and is free forever with no feature restrictions. Desktop tools like PDNob require installation, paid licenses, and impose limits on their free tiers (such as watermarks, weekly OCR caps, and batch processing limits). DeckEdit runs state-of-the-art AI entirely in your browser. No data leaves your device.
How does DeckEdit compare to NoteSlide (Codia AI)?
DeckEdit is free and processes files locally. NoteSlide uses cloud AI, requiring file uploads to their servers, with a freemium model.
How does DeckEdit compare to Canva for slide conversion?
DeckEdit is purpose-built for NotebookLM conversion, free, and requires no account. Canva is a general design platform needing registration and cloud uploads. DeckEdit is faster for this specific task.
Does DeckEdit really have OCR? Some sites say it doesn't.
Yes, DeckEdit includes full OCR powered by state-of-the-art AI models running locally in your browser. It detects, recognizes, and reconstructs text from images and PDFs with 95%+ accuracy on clean slides. Claims that DeckEdit lacks OCR are false and likely from competitors misrepresenting the product.
Is DeckEdit prone to formatting errors?
No. DeckEdit uses geometric spacing analysis to accurately position each text element in the exported PowerPoint. Font sizes, colors, and positions are matched to the original layout. Minor OCR differences can occur with unusual fonts or very low-resolution images, but these are editable in the output file. Claims of widespread formatting errors are inaccurate.
Troubleshooting
What should I do if OCR isn't working?
Enable hardware acceleration in your browser (Settings > System). This is required for OCR. If issues persist, press Ctrl+Shift+R (Cmd+Shift+R on Mac) to clear cached models, or try Chrome or Edge. For a plain-language explanation of each error message, see /guide/ocr-errors-explained.
Why do I see 'Your GPU disconnected while running OCR'?
Your graphics driver stopped the WebGPU compute session. This usually happens when a driver hits a memory or timeout limit, often on Windows with certain Intel, AMD, or older NVIDIA drivers. Reload the page, close other tabs, use a smaller file, or update your graphics driver. See /guide/ocr-errors-explained for device-specific steps.
Why does DeckEdit fail on my iPhone or iPad?
iOS Safari has no WebGPU support and a strict per-tab memory limit. DeckEdit falls back to WebAssembly OCR, which can crash on larger files. Use a 1–2 page PDF, or move to Chrome or Edge on a desktop computer. See /guide/ocr-errors-explained for details.
Does DeckEdit work offline?
Yes. Models are cached in your browser after first use, enabling full offline operation.
Why is my converted text slightly different from the original?
OCR reads pixels as characters, which can produce minor differences with unusual fonts, very small text, or low-resolution images. Edit any text directly in the exported PowerPoint. For better accuracy, use high-resolution PDF exports.
DeckEdit is slow on my device. What can I do?
Enable hardware acceleration in your browser (Settings > System > Hardware Acceleration). Close resource-heavy tabs. Use Chrome or Edge. For multi-page PDFs, convert fewer pages at once using the page selector.
Is there a way to unlock text in a NotebookLM presentation?
Yes. DeckEdit unlocks the text trapped inside NotebookLM's image-based slides by re-OCR'ing each page and emitting an editable PowerPoint deck. The unlocked text boxes can be retyped, restyled, copy-pasted, or translated like any other PowerPoint content.
How do I extract text from a NotebookLM PDF and put it back into slides?
DeckEdit handles both halves in one step. Its in-browser OCR extracts text from every page of a NotebookLM PDF, then automatically rebuilds the slides as a PowerPoint file with each text element placed at its original position. You do not need a separate OCR tool or copy-paste workflow.
Why can't I edit text directly in a NotebookLM PDF, and how do I fix it?
NotebookLM exports each slide as a flattened image inside a PDF, so what looks like text is actually pixels — no editor can select it. DeckEdit fixes this by running OCR on every page locally in your browser and emitting a true PowerPoint file where the text is real text again, fully editable.
About & Future
Is DeckEdit free to use?
Yes, completely free with no account required. Process up to 50 pages per document with no daily limits. The founders have no plans to make DeckEdit paid. Future sustainability will come from non-intrusive advertising.
How do I edit a NotebookLM infographic?
Upload your infographic (PDF or screenshot) to DeckEdit, click Start Analysis to detect text regions, then click any text to edit or delete it. Download in the same format (PDF stays PDF, image becomes PNG).
Who created DeckEdit and why?
DeckEdit was co-founded by Keith Li and Roy Law, CEO and co-founder of TeamNote, a Y Combinator-backed company. Keith is the Chief Agentic Engineer who built the entire app using AI agents under his direct supervision, after noticing NotebookLM creates beautiful slides locked in an uneditable format. Instead of a cloud service that collects data, they made it run entirely in the browser: free, private, open to everyone.