File Formats

Supported File Formats — PDF, DOCX, PPTX & More

LearnCastAI processes all common document formats: PDF, Word documents (DOCX), PowerPoint presentations (PPTX), and plain text files (TXT). Upload up to 3 files at once and have them automatically converted into a natural learning podcast.

Whether lecture slides, a script, or a textbook chapter — LearnCastAI extracts the text, structures it, and creates a dialogue podcast with two AI voices.

Upload a file — try for free See pricing

1 podcast free · No credit card · PDF, DOCX, PPTX & TXT

Common questions before your first upload

We have clear answers — no more guessing.

Which formats are accepted?

Many tools only accept PDFs — and then the upload fails anyway because the PDF is scanned. That is frustrating.

LearnCastAI accepts PDF, DOCX, PPTX, and TXT. When uploading, you immediately see whether the format is supported.

Upload fails due to file size

Large textbooks or extensive presentations get rejected without a clear explanation of what went wrong.

LearnCastAI shows you the exact limits upfront: up to 20 MB per file. Files that are too large can simply be split up.

Do PowerPoint files work?

PPTX files are simply ignored or incorrectly processed by many tools — yet slides often contain the most important learning material.

Yes! LearnCastAI automatically extracts text from your PowerPoint slides and converts it into a complete learning podcast.

Here is how it works

Three steps to your learning podcast

From document to podcast — in just a few minutes.

1

Prepare your file

Make sure your file is one of the supported formats (PDF, DOCX, PPTX, or TXT) and no larger than 20 MB.

For PDFs: text-based PDFs work best. Scanned PDFs without OCR cannot be processed.

Tip: You can upload up to 3 files at once
2

Upload your file

Drag and drop your file into the uploader or select it via the file browser. Multiple files can be uploaded at the same time.

LearnCastAI automatically extracts all the text — for PPTX, all slide content is captured.

Formats: PDF, DOCX, PPTX, TXT · Max. 20 MB
3

Let LearnCastAI create your podcast

LearnCastAI analyses your content, structures it, and creates a natural dialogue podcast with two AI voices.

Flashcards and quiz questions are also automatically generated from your document.

Ready in just a few minutes

All formats — one workflow

Whatever format you use: LearnCastAI processes it reliably and turns your content into learning material.

PDF support

Text-based PDFs are fully processed — LearnCastAI automatically extracts all text content, even with multi-column layouts. Up to 20 MB per file.

DOCX support

Word documents (.docx) are processed including headings and paragraph structure. The outline of your document shapes the podcast structure.

PPTX to audio

PowerPoint presentations (.pptx) are analysed slide by slide. The AI extracts titles, bullet points, and speaker notes — then creates a complete learning podcast from them. Ideal for lecture slides.

TXT support

Plain text (.txt) files are processed directly — perfect for copy-pasted content or custom summaries. Up to 5 MB.

Multiple files

Upload up to 3 files at once (Basic plan), 5 files with Pro, or 10 files with Max. LearnCastAI combines all content into a single podcast.

Plan-based page limits

Basic: 50 pages per podcast, Pro: 100 pages, Max: 500 pages. For longer documents, simply split them into smaller uploads.

Frequently asked questions about supported file formats

LearnCastAI currently supports four formats: PDF (.pdf), Word documents (.docx), PowerPoint presentations (.pptx), and plain text files (.txt). Additional formats such as EPUB are planned.
PDF, DOCX, and PPTX files may each be up to 20 MB in size. TXT files are limited to 5 MB. Page limits also apply depending on your plan: Basic 50 pages, Pro 100 pages, Max 500 pages.
LearnCastAI reads every slide of your PowerPoint presentation: titles, bullet points, and speaker notes are all captured. The AI then creates a structured conversation script — two AI voices discuss the content just like a real podcast. Images and diagrams from the slides are not processed, only the text.
No — LearnCastAI processes text only. Images, photos, graphics, and purely visual elements are ignored. Tables are only processed when the text inside them is machine-readable (not inserted as an image).
Yes: the Basic plan processes up to 50 pages per podcast, the Pro plan up to 100 pages, and the Max plan up to 500 pages. For longer documents, we recommend uploading only the relevant chapters.
Yes! From your PPTX file, LearnCastAI not only creates a learning podcast but also automatically generates flashcards and quiz questions. In study mode you can then test your knowledge of the slide content — with a spaced repetition system and automatic progress tracking.
File Formats

Ready? Upload your file

PDF, DOCX, PPTX, or TXT — LearnCastAI creates your personal learning podcast in minutes.

No subscription needed for your first podcast. Just sign up and get started.

Upload file now

1 podcast free · No credit card · PDF, DOCX, PPTX & TXT

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