Supported File Formats

What File Formats Does Knowlify Accept?

A supported file format is any document type that Knowlify can ingest and automatically convert into a narrated, animated video. Knowlify accepts the following file types as source material for video generation. According to Adobe's 2023 Document Cloud report, over 300 billion PDFs are opened in Adobe products each year, making PDF the dominant format for enterprise knowledge sharing — and one of the most common starting points for document-to-video conversion.

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Format	Extension	Best For
PDF	.pdf	Policy documents, reports, white papers, manuals
PowerPoint	.pptx	Slide decks, presentations, training modules
Word	.docx	SOPs, guides, handbooks, written procedures
Plain Text	.txt	Quick drafts, notes, raw content
Markdown	.md	Technical documentation, structured content

How Should You Prepare Each File Type for Best Results?

PDF Files

• Use text-based PDFs, not scanned images. A text-based PDF is a document where the content is encoded as selectable, machine-readable characters rather than a flat image of a page. In our experience, scanned PDFs are the single most common cause of poor output quality. If your PDF is a scan, run OCR on it first so the text layer is available. Adobe's guidance on PDF accessibility emphasizes that proper structure and text layers are essential for both assistive technology and content extraction. A 2023 AIIM industry survey found that 82% of organizations still rely on PDF as their primary format for policies and compliance documents — so optimizing your PDFs for machine readability pays off across multiple workflows, not just video generation.
• Structured headings (H1, H2, H3) help the AI understand your document's hierarchy and produce a better-organized video.
• Avoid PDFs with heavy watermarks or background images that obscure text.

PowerPoint Files

• Speaker notes are used. Speaker notes in PowerPoint are the hidden text panels beneath each slide where presenters keep talking points, context, and narration cues. If your slides have speaker notes, the AI will incorporate them into the narration script—so make sure they are up to date. Microsoft Support on PowerPoint structure recommends clear slide structure for clarity—the same principle helps document-to-video tools segment content.
• One idea per slide produces cleaner scene breaks in the final video.
• Embedded images and charts are recognized and can be referenced in the generated visuals.

Word Documents

• Use heading styles (Heading 1, Heading 2, etc.) rather than bold or large font to indicate structure. The AI relies on heading styles to identify sections.
• Bullet points and numbered lists translate well into on-screen callouts.
• Tables are supported and will be represented visually in the video.

Plain Text and Markdown

• Use blank lines between paragraphs to help the AI identify section breaks.
• In Markdown, standard heading syntax (#, ##, ###) maps directly to video sections.
• These formats are ideal for pasting content directly into the platform without creating a separate file.

What Are the File Size Limits?

Most documents process in under a minute. Very large files (100+ pages) may take slightly longer. If your document exceeds the upload limit, consider splitting it into focused sections and generating a separate video for each — this typically produces better results anyway. Wyzowl's State of Video Marketing report found that 89% of consumers say watching a video has convinced them to buy a product or service, and that shorter, topic-focused videos consistently outperform long monolithic ones in both completion rates and knowledge retention.

How Do You Prepare Documents for Best Results?

No matter which file format you choose, a few minutes of preparation can noticeably improve the quality of the generated video.

• Remove confidential headers and footers. Any text in the document may surface in the final video. Strip out internal-only banners, draft stamps, or confidential footers before uploading.
• Verify that the content is current. The AI treats the uploaded file as the single source of truth. Outdated statistics, deprecated procedures, or old branding will carry through to the video, so review your document for accuracy first.
• Use consistent formatting throughout. Mixing manual bold text with proper heading styles, or alternating between numbered lists and free-form paragraphs, makes it harder for the AI to determine your document's structure. Pick one formatting convention and stick with it.
• Include a table of contents or clear section breaks for long documents. Explicit section dividers — whether a table of contents, page breaks, or prominent headings — help the AI map your content into distinct video scenes instead of treating it as one continuous block.
• Consider splitting documents over 20 pages. We found that documents in the 5-to-15-page range hit the sweet spot for video quality and viewer retention. Long files can be converted successfully, but shorter, focused documents consistently produce tighter videos. If your handbook covers five separate topics, five individual uploads will yield five targeted videos that are easier for viewers to navigate and revisit.

What Output Formats Are Available?

After generating your video, you can export in:

• MP4 — Standard video file, compatible with virtually every player and platform.
• Web-optimized MP4 — Smaller file size for embedding on websites or sharing via link.

For the latest details on supported formats and limits, visit knowlify.com.