SlideSpeak converts PDF presentations into narrated videos. Users upload a PDF, and the software generates scripts from slide content using AI. Voice narration is synthesized with 6 voice options across 29 languages. Video processing occurs in the browser using WebAssembly; files are not uploaded to servers. Output formats include 1080p MP4 in 16:9 or 9:16 aspect ratios, with optional SRT subtitles. Pricing is pay-per-video ($2.49-$9.99 based on duration). No account registration required. **Use cases:** Corporate training, employee onboarding, educational content, product demonstrations, internal communications. **Technical specifications:** - Input: PDF files up to 50MB - Output: H.264 MP4, 1080p resolution - Processing: Client-side (browser-based) - Languages: 29+ supported - Voices: 6 AI voices