How do I turn a PPT into a narrated video?
Drop a .pptx, .ppsx, .pdf or image into SlideTalk — AI writes the narration, voices it, adds subtitles and scene animations, renders the video, and drafts cover, title, description and tags. Full setup and usage steps below, plus which formats are supported.
Help & Frequently Asked Questions
Quickly find the answers you need
Credits Top-Up Guide
Where credits come from, how to buy them, and how they're spent — in one minute
Where do the free credits come from?
On first launch, after you accept the privacy notice, the app creates an anonymous Apple account and grants 600 credits (about 1.7 ten-page videos). No registration, no phone number. Once the iPhone and iPad versions ship, your Mac, iPhone and iPad on the same Apple ID share one wallet.
When do I need to top up?
Before each AI run the app quotes the cost and freezes the credits: narration 1 credit/page, voiceover 1 credit/10 characters, AI covers per image. When your balance runs low the app pauses and raises the top-up sheet; after topping up it resumes from the checkpoint and never charges twice. Importing, editing, preview, rendering and export are always free.
Where do I buy credits?
Open Settings → Wallet / Top Up and buy a pack through Apple In-App Purchase: $0.99 / $3.99 / $9.99 / $29.99. While your first-purchase bonus is unused, the sheet shows only the $0.99 / $3.99 variants with doubled credits (e.g. $0.99 → 1,200); once used, all four regular packs are available.
First purchase & watermark
Any first purchase, no matter the amount, permanently removes the brand watermark from exported videos (the preview is always clean). It also doubles your credits; refunds are reversed per Apple's rules and the doubled bonus is not reclaimed. Credits never expire.
App Usage Tutorial
The complete flow from download to your first video
Download & Install
1. Search for "SlideTalk" on the App Store, or click download on this site 2. Free: the Mac version needs macOS 15.1+, the iPhone / iPad version needs iOS 17+ / iPadOS 17+ 3. On first launch, accept the privacy notice and grant file access 4. All three are one universal app — the same Apple ID shares one credit wallet
Account & Credits (nothing to configure)
1. On first launch the app creates an anonymous Apple account and binds a credit wallet 2. 600 welcome credits arrive immediately — no API key, no email, no password 3. Every AI run is quoted and frozen first; when your balance runs low the top-up sheet appears 4. After topping up, generation resumes from the checkpoint with no double charging
Create Your First Video
1. Drag in a deck, PDF or images 2. Pick the target platform (B站 / YouTube / Shorts / TikTok / 视频号 / podcast) 3. Pick a narration mode (solo / two-person interview / teacher-student Q&A / news anchor) 4. Pick a voice and speed 5. Tap Generate Narration and fine-tune page by page 6. Tap Generate Animations — AI marks the key points, and you can drag to adjust 7. Tap Generate Video and wait for the render
Export & Publish
1. When the render finishes, open the Publish Center 2. Choose an export resolution (480p–4K, all free, no duration limit) 3. Let AI generate the cover, title, description, tags and chapters 4. Export the release bundle (video, .srt subtitles, cover, titles and more) 5. Paste it into the platform's back end and publish
Supported File Formats
What you can drag straight in, and what needs re-saving first
Import directly
- .pdf
The best option. Rendered page by page into high-resolution images, so layout is 100% faithful — what you see is what you get.
- .pptx
Layout is approximated in place (see the note below), and text plus presenter notes are extracted for AI to work from.
- .ppsx
PowerPoint's show format, handled exactly like .pptx.
- Images
PNG / JPG / HEIC / WEBP — handy for turning 小红书 posts or handwritten notes straight into video.
Re-save these before importing
- .ppt / .pps
The legacy PowerPoint binary format (OLE2 compound document) is structurally nothing like modern .pptx and can't be parsed. In PowerPoint, choose Save As → .pptx or .pdf.
- .key
Keynote's proprietary IWA package can't be parsed. In Keynote, choose Export To → PowerPoint (.pptx) or PDF.
Read this first about PPTX layout fidelity
PPTX layout is approximated, not reproduced pixel for pixel. What comes through: position and size of text boxes and images, font size, weight, italics and color, alignment and indentation, bullets, basic shapes (rectangle / rounded rectangle / ellipse / diamond) and lines, groups, tables, and theme colors. Not yet supported: gradient fills, charts, SmartArt, and native PowerPoint animations and transitions. If your deck leans heavily on those, export it to PDF first and import that instead — the layout will be the most faithful.
What's Free vs What Costs Credits
Capability walls are gone: no resolution, length, cover or title limits. Only AI generation costs credits
Credit essentials
Frequently Asked Questions
Quick answers to common questions
SlideTalk is an Apple-native app (available on the App Store for Mac, iPhone and iPad worldwide) that turns a deck into a complete video. It doesn't just convert slides to video — AI writes the narration, records it, adds subtitles and scene animations, renders the final cut, and also prepares the cover, title, description, tags and chapters you need to publish.
You can import .pptx, .ppsx, .pdf and PNG / JPG / HEIC / WEBP images directly — just drag them in from your computer, WeChat, Mail or anywhere else. Legacy .ppt / .pps and Keynote's .key can't be parsed directly and need re-saving as .pptx or .pdf — see "Supported File Formats" above.
PPTX layout is approximated, not reproduced pixel for pixel. Text, images, basic shapes and tables are rendered in place, but gradient fills, charts, SmartArt and native PowerPoint animations aren't supported yet. If your deck relies on those, export it to PDF in PowerPoint first and import that — PDFs are rendered page by page, so the layout is 100% faithful.
The watermark appears only on exports — the preview is always clean. Any first purchase (from $0.99) permanently removes it from exports, and it doubles your credits at the same time.
Because the capability walls are gone: 480p–4K resolution, video length, covers and titles are all unlimited and always free. What costs credits is AI generation itself — narration, voiceover and covers are metered; editing, preview, rendering and export never cost anything.
A 10-page video is about 352 credits (roughly $0.58): narration per page, voiceover per 10 characters, covers per image — every step is quoted and frozen before it runs. The 600 welcome credits cover about 1.7 complete videos; if the balance runs low generation pauses and resumes after top-up, with no double charging.
Credits never expire. Top-ups go through Apple In-App Purchase; refunds are reversed automatically per Apple's rules — a balance can go negative and the next top-up settles it first, and a used first-purchase bonus is not reclaimed.
Four: solo narration, two-person interview, teacher-student Q&A and news anchor. Two-person modes automatically assign a different voice to each role so the video sounds like a real conversation. Narration can also be Chinese, English or bilingual.
Both are automatic. Subtitles are split from the narration into short lines and burned into the frame in one of 5 style presets (including short-video big-caption looks), with a .srt exported alongside. There are 6 scene animations — highlight, zoom, spotlight, arrow, underline and bracket — and AI picks the spot worth emphasizing, then uses OCR to snap it onto the text lines; you can also adjust it by hand in the animation editor.
An anonymous Apple account, no personal data collected. Decks, narration, audio and video all live in the app's own sandbox container, rendering happens on your machine, and uninstalling the app deletes everything. Only AI generation forwards the relevant page text (plus the slide image if you enable vision understanding) through our gateway to the model provider, and the gateway stores no user content. No API key is ever required.
AI generation does, because it runs through our gateway. Narration and assets you've already generated can be edited offline, and rendering is entirely local, so you can export without a connection.
Not yet. It's an Apple-native app, on the App Store for Mac, iPhone and iPad worldwide, requiring macOS 15.1+ / iOS 17+ / iPadOS 17+ respectively. A HarmonyOS version is still in planning and has not been released.
Educators & Trainers
It depends on your bottleneck: if speaking is the problem, pick an AI-voice route (no mic at all); if time is the problem, pick an AI pipeline (~20 minutes per video); only chase manual recording + editing for cinema-grade expression. Full four-way comparison: which PPT-to-video tool is best; teacher-specific features on the educators page.
SlideTalk's download, import, editing, voice previews, rendering and export (including 4K) are free forever — which covers most of microlecture production when you're not recording yourself. Only AI generation (scripts, voiceover, covers) is metered in credits, with 600 welcome credits; rules on the pricing page.
Knowledge Creators
Depends on your material: only decks and a need for consistent output — pick an AI pipeline (~20 minutes per video, with covers/titles/tags generated); camera footage — pick an editor like CapCut; one-off and non-confidential — a web AI tool works. Full comparison: which PPT-to-video tool is best; creator features on the creators page.
For educational content, SlideTalk alone is enough: no editing to learn, AI writes/voices/assembles, and covers, titles and tags are generated in each platform's style. Import, editing, rendering and export are free forever; AI generation is about $0.58 per 10-page video, with 600 welcome credits. The playbook: faceless knowledge videos.
Corporate Training & Consultants
Judge by the data path: SlideTalk needs no sign-up and collects no telemetry; decks and videos live in the app sandbox, wiped on uninstall; rendering is on-device; AI generation forwards only the necessary page content through our own gateway, which stores nothing — full text in the privacy policy. The audit method: confidential PPTs and cloud AI.
SlideTalk needs neither an account nor a phone number: on first launch an anonymous identity and credit wallet are established automatically via Apple's AppTransaction — no forms, no verification codes. Details on the business page.
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Download SlideTalk Make your first video in 5 minutes
SlideTalk is an Apple-native app that turns your PPT straight into finished, publish-ready videos for B站, YouTube and 视频号. Drag in a deck, say one idea — AI writes the narration, voices it, adds subtitles and scene animations, renders the video, and drafts cover, title and tags. An anonymous Apple account starts you with 600 free credits; AI generation is metered by credits, editing, preview, rendering and export are always free — no subscription, no API keys.
Available on the App Store worldwide since 25 Oct 2026 — including the US, UK, Japan, Germany and Korea.