之前的

You have a PDF packed with valuable content, but static pages do not hold attention the way video does. If you want to convert PDF to MP4 so people actually watch and share your message, the process is faster than you might think. This guide shows you how to convert PDF to MP4 using Recastia, an AI-powered tool that writes the script, adds voiceover, and exports a real MP4 file you can use anywhere. We also cover two manual alternatives and explain what each free plan includes. Full disclosure: Recastia is our own product, so we know the workflow inside out. Why Convert PDF to MP4? PDFs are reliable for storing and sharing documents, but they are not built for engagement. Most people skim or skip long documents entirely. Video fixes that: it is easier to consume, more likely to be shared on social media, and works on phones, in emails, and on websites without any downloads. The numbers back this up. Wyzowl reports that 91% of businesses now use video as a marketing tool, and 82% of marketers say video gives them a good return on investment. Converting a document into video simply extends those benefits to content you already have. How to Convert PDF to MP4 in 2026 (Step-by-Step Guide) Aug 11, 2026 — by Cassie in PDF to Video Explore Pricing Contact Us Log in Sign up EnglishMaking a video by hand means writing a script, recording narration, and editing footage — hours of work. A PDF-toMP4 tool like Recastia handles the script, narration, and visuals for you, so the same job takes minutes. For marketers, educators, and small business owners, that time saving adds up quickly. What You Need Before You Start You only need two things: 1. 1. A PDF file. Reports, slide decks, lesson packs, and brochures all work. The free plan accepts up to 200 pages per upload, so most documents fit comfortably. 2. 2. A free Recastia account. Sign up on recastia.com and you can start creating right away. No editing software, microphone, or design skills are needed. How to Convert PDF to MP4 with Recastia (Step by Step) The steps below follow the exact flow we verified in Recastia’s dashboard using a free test account. The workflow has six steps and takes only a few minutes: 1. 1. Choose PDF to Video 2. 2. Upload Your PDF 3. 3. Pick a Generation Mode 4. 4. Customize Script and Pages 5. 5. Configure Video Settings 6. 6. Download Your MP4 Step 1: Choose PDF to Video EnglishLog in to your Recastia dashboard. Under “Choose What to Create from Your PDF,” you will see six output types: Online Flipbook, PDF to Video, Slide Presentation, Landing Page, 3D Exhibition, and AI Chatbot. Click the PDF to Video card. The card reads: “Create video with visuals, animations, and narration.” Step 2: Upload Your PDF Click or drag your file onto the upload page. Recastia accepts PDFs and images up to 100MB and 200 pages per file. This is the core of how any tool of this kind works: the AI reads your document and builds the video around it. EnglishStep 3: Pick a Generation Mode After upload, a dialog asks you to select a video generation mode: Minimal Mode — No voiceover or narration; auto page carousel only. Easy Mode — Marked Recommend; AI-powered voiceovers and avatars with smart page sync. Advanced Mode — Page-by-page reading with AI voice narration and avatars. Pick the mode that fits your audience. Easy Mode is the best starting point for most projects. EnglishStep 4: Customize Script and Pages Next comes the copywriting page. You have two options for the voiceover script: Click AI Copywriting to generate a script from your PDF automatically. In our test, a five-page PDF produced a 1,177- character script. Paste your own script directly (up to 6,000 characters). EnglishToggle Subtitle Display on or off. Under Video Display Page, tick which PDF pages go into the video; all pages are selected by default. Step 5: Configure Video Settings On the configuration page, set the details that shape the final MP4: Video Ratio — Choose 16:9 for widescreen or 9:16 for vertical formats. Video Effect — Pick from 15 effects such as 3D Flipbook, Scroll Up, or Film Narrative. Hover to preview each one. EnglishAvatar — Add an AI presenter if you want a face in the video. Voice — Select from hundreds of AI narrators, such as “Coral | Friendly, approachable.” Background Music — Choose a track, for example “Connecting Rainbows.” Subtitle Style — Pick a caption format that matches your branding. When everything looks right, click Generate. You can close the window and track progress from your Dashboard. Step 6: Download Your MP4 EnglishWhen generation finishes, your video plays online immediately. You can copy the share link, scan the QR code to preview on your phone, or embed the video on your website. Most importantly for this guide, click Download to save the file as a real MP4 — we confirmed this works on the free plan. The file downloaded as video/mp4 at about 2.6MB in our test. Free-plan videos carry a small “Made with Recastia” badge in the top-left corner. In our test, a five-page PDF became a 1-minute 43-second narrated video with 3D Flipbook effects, an AI avatar, and synced captions. Other Ways to Convert PDF to MP4 EnglishRecastia is the fastest way to turn PDF into MP4 with AI, but you can also do it using tools you may already own. Both options below require manual work, and neither adds AI voiceover for you. Option 1: Turn PDF into MP4 with PowerPoint If your PDF is a slide deck, open or rebuild it in the PowerPoint desktop app. Then go to File > Export > Create a Video. You can export as MP4, choose a resolution (4K, 1080p, 720p, or 480p), add recorded narration, and set slide timings. See Microsoft’s official guide for details. Option 2: Turn PDF into MP4 with Canva Canva lets you import a PDF and turn it into an editable design. Add animations and audio manually, then go to Share → Download → MP4 Video. Free users can export videos up to 30 minutes long at up to 1080p, according to Canva’s download guide. Both methods work if you enjoy hands-on editing, but there is no AI doing the heavy lifting. If you simply want to turn PDF into MP4 fast, automation saves real effort. Method How it works AI voiceover Manual effort Free limits Recastia AI reads your PDF and builds a narrated MP4 for you Yes, with an AIwritten script Low — six steps 100+ video generations and 10+ PDF conversions, with Recastia branding PowerPoint Export slides via File > Export > Create a Video No — you record your own narration High — set timings and record audio yourself Requires the PowerPoint desktop app Canva Import the PDF as an editable design, then download as MP4 No — you add audio manually High — animations and audio by hand Exports up to 30 minutes at up to 1080p EnglishIs It Free to Convert PDF to MP4? Yes — Recastia’s free plan costs $0 and is genuinely useful. It includes 100+ video generations, 10+ PDF conversions, up to 200 pages per upload, 5GB of storage, and direct MP4 downloads of your finished videos. Feature Free Pro Price $0 $8/month, billed annually Video generations 100+ videos Unlimited videos PDF conversions 10+ conversions 100+ conversions Pages per upload 200 pages 500 pages Watermark Recastia branding No watermarks, white branding Website embedding Download only Website embedding included Storage 5GB 15GB There is one honest catch. Videos made on the free plan include a “Made with Recastia” badge in the corner. For personal projects and internal training clips, that is usually fine. However, if you need clean, client-ready output, the Pro plan removes watermarks, adds white branding and website embedding, and raises the upload limit to 500 pages. Start free, then upgrade only when branding matters. Common PDF to MP4 Questions Can I turn a PDF into an MP4 for free? Yes. Recastia’s free plan costs $0 and includes 100+ video generations and 10+ PDF conversions. You also get a direct MP4 download. Free videos carry a small Recastia badge; removing it requires Pro ($8 per month, billed annually). English