
Create AI videos with 230+ avatars in 140+ languages.
Convert Word documents into engaging AI videos in 140+ languages.
Last month, I found myself staring at a 15-page training document I'd written for our new team members. Like most professionals, I was facing the same challenge I hear about constantly: how do you transform text-heavy documents that no one wants to read into engaging content that actually gets consumed?
Research shows that learners retain 95% of information presented in video compared to only 10% when reading text. But creating professional videos seemed overwhelming—I don't have video production skills, my schedule was packed, and hiring a production team wasn't in the budget.
That's when a colleague suggested Synthesia. I was skeptical at first (aren't we all when someone promises a quick fix?), but after trying it, I realized it genuinely transformed how I convert text-heavy content into engaging videos. What used to take me days now takes minutes, and the results look surprisingly professional.
Complete walkthrough: transforming your Word document into an engaging video
1. Prepare your Word doc for video conversion
I think it's worth spending a few minutes rewriting key sections into a more natural script format. Here are the specific transformations I make:
From documentation language to conversational language:
- Instead of: "employees must complete form A-12 before proceeding"
- I write: "First, you'll need to fill out the A-12 form, which takes about two minutes"
From dense paragraphs to bite-sized chunks:
- Instead of: "The new workflow process has been designed to optimize efficiency by reducing redundant steps while ensuring compliance with company policies and maintaining data integrity throughout the customer service ticketing system"
- I write: "Our new workflow cuts out extra steps. You'll create tickets faster while keeping everything secure and compliant"
Add stage directions for visuals:
- "Click the New Ticket button [show screenshot of dashboard with button highlighted]"
- "Enter a clear title [zoom on title field]"
This transformation is crucial because spoken narration averages 120-150 words per minute, so a tight 3-minute video needs around 400-450 words maximum.
2. Sign in to Synthesia and select "AI video assistant"
Getting started is straightforward. After creating an account (or logging in), I navigate to the "AI video assistant" feature from the dashboard. It's prominently displayed, so you can't miss it.
The upload process accepts various file types. While I mainly use Word documents, it's worth noting that PDFs, PowerPoint presentations, and plain text files work just as well.
A few technical notes I've learned through experience: Synthesia handles .docx files better than older .doc formats. If your document has complex formatting, tables, or embedded images, I recommend doing a quick cleanup first—remove excessive formatting, simplify tables into bullet points, and note where images should be referenced rather than embedded. Documents up to 50 pages work well, though I typically break anything longer than 10 pages into multiple videos for better viewer engagement.
3. Let Synthesia structure the video

This is where the AI magic happens. After uploading my document, Synthesia analyzes the content and automatically breaks it into logical scenes. The first time I watched this happen, it felt like having an assistant who actually understood my content.
I always review the suggested structure and make adjustments. Sometimes I'll combine shorter scenes or break up longer ones for better pacing. The AI does a good job, but adding that human touch ensures the video flows naturally.
4. Choose a video template that matches your brand
With over 60 templates available, I initially felt overwhelmed by the choices. I've since developed a system:
- For internal training, I use the clean corporate templates
- For customer-facing content, I choose something with more visual appeal
- For social media snippets, I select templates optimized for the specific platform
For my onboarding document, I chose a template with a soft blue background and clean transitions that matched our company colors. The difference between a generic template and one that aligns with your brand is subtle but important—it makes the video feel intentional rather than automated.
Synthesia's Brand Kit feature has been particularly valuable for maintaining consistency across multiple videos. I can upload our company colors, fonts, and logo once, then every video automatically matches our brand guidelines.

5. Select an AI avatar and voice
Choosing from 230+ avatars was surprisingly fun. For my training videos, I selected Emma, who has a professional appearance but also seems approachable. For more technical content, I use Thomas, who has a slightly more authoritative presence.
The voice selection is equally important. I've found that matching the accent to your primary audience increases engagement. For our U.S. team, I use American English voices, but we have Australian and British English options for our international offices.
A tip I discovered by accident: changing the avatar's position on screen between scenes keeps viewers' attention. Having your avatar consistently centered can become visually monotonous.

6. Edit slides, script, and visuals
This is where I spend the most time—but it's also where the magic happens. Synthesia makes it easy to edit the script for each scene, add images or video clips, and incorporate your own branding elements.
Here's a concrete example from my experience: I had a 12-page employee handbook section about our expense reporting process. Instead of one long video, I broke it into three focused videos:
- "Submitting Your First Expense Report" (2 minutes)
- "Common Expense Categories and Limits" (3 minutes)
- "Troubleshooting Rejected Expenses" (2 minutes)
Each video includes actual screenshots from our expense system, and I added our company's brand colors and logo. The result feels professional and specific to our organization, not like a generic tutorial.
I've developed a habit of previewing each scene after editing it. This helps me catch awkward phrasing or pacing issues before generating the final video. Adding short pauses between key points makes the narration sound more natural and gives viewers time to absorb information.
7. Add translations or captions (optional but recommended)
With team members across three countries, I always enable captions and sometimes create translated versions. The 1-Click Translation feature has been a game-changer for our global team. I can create the master video in English, then generate Spanish and French versions with the same avatar and timing—just different voices and captions. This used to require separate production for each language.
Even for English-only videos, I include captions. They improve accessibility and are helpful for viewers watching without sound (which, let's be honest, is how many people consume content these days).
8. Generate and export your video
When everything looks good, I click "Generate" and wait for the magic to happen. The processing time varies based on video length, but it's remarkably fast—usually just a few minutes for a 5-minute video.
I particularly appreciate the Video Preview feature—I can see exactly how each scene will look before generating the final video, which saves time and ensures quality.
I can then download the video in various formats or share it directly via Synthesia's player. For our internal training, I usually download the MP4 file and upload it to our learning management system.
When things don't go as planned: troubleshooting tips
If the AI misinterprets technical terms: I keep a list of industry-specific terms and acronyms to review in the generated script. For example, "API" might be pronounced as "A-P-I" instead of "ay-pee-eye"—easy to fix in the script editor.
If scenes feel too long or short: I've learned that 15-30 seconds per scene works best. Longer scenes lose viewer attention; shorter ones feel choppy.
If the avatar delivery sounds unnatural: I add commas and periods to create natural pauses. Sometimes I'll rewrite a sentence to be shorter and more conversational.
If the visual flow doesn't match the content: I preview each scene individually before generating the full video. It's much easier to adjust the script or add stage directions before final generation than to start over.
Pro tips that make the difference (learned from creating 50+ videos)
After creating about 50 videos using this document to video AI approach, I've picked up some useful habits:
- Focus each scene on one idea: Viewers retain information better when it's presented in bite-sized chunks.
- Be consistent with branding: Use the same color scheme, fonts, and logo placement across all your videos.
- Mix up your visuals: Alternate between avatar scenes, slides with images, and charts to maintain visual interest.
- Don't be afraid to re-edit: One of my favorite features is how easy it is to update videos. When our process changed slightly, I was able to modify just that section rather than recreating the entire video.
- Always review the auto-generated script: Sometimes technical terms or acronyms need correction.
- Consider accessibility: Use high-contrast colors and readable fonts for viewers with visual impairments.
The results speak for themselves
Since implementing these AI-created videos using this word to video converter approach, the results have exceeded my expectations:
- 64% increase in training material engagement (measured by completion rates)
- 50% reduction in follow-up questions from new hires during onboarding
- 3 hours per week saved on repetitive training sessions
- 40% faster time-to-productivity for new team members (they report feeling confident in core tasks within 2 weeks instead of 3-4 weeks)
The most surprising benefit? Our international team members specifically mentioned that having captions and the ability to replay sections made the training much more accessible than our previous text-heavy approach.
Ready to transform your documents?
If you have Word documents gathering digital dust because no one wants to read them, here's what I recommend: start with your most important but least-read document—probably a training manual, process guide, or FAQ. Use the preparation steps I outlined to transform it into a conversational script, then follow the Synthesia workflow.
Even if you have zero video experience (like I did), you can create professional, engaging content in minutes rather than days. The key is starting simple and building confidence. Your first video won't be perfect, but it will be significantly more engaging than a text document that nobody reads.
The shift from static documents to dynamic videos isn't just about keeping up with trends—it's about meeting your audience where they are and delivering information in the format they actually want to consume. And with AI-powered tools making this doc to video conversion accessible to everyone, there's really no reason to stick with those dusty old Word documents anymore.
About the author
Strategic Advisor
Kevin Alster
Kevin Alster heads up the learning team at Synthesia. He is focused on building Synthesia Academy and helping people figure out how to use generative AI videos in enterprise. His journey in the tech industry is driven by a decade-long experience in the education sector and various roles where he uses emerging technology to augment communication and creativity through video. He has been developing enterprise and branded learning solutions in organizations such as General Assembly, The School of The New York Times, and Sotheby's Institute of Art.

Frequently asked questions
How do I prepare my Word document for AI video conversion?
Break your document into conversational, script-like sections and use clear headings to help the AI structure your video effectively.
Can I customize the look and feel of my AI-generated video?
Yes, you can choose from over 60 templates, select avatars and voices, and add your branding, images, and even video clips.
Is it possible to add captions or translate my video into other languages?
Absolutely! You can enable captions for accessibility and quickly generate translated versions for different audiences.
How long does it take to generate a video from a Word document?
Most videos are processed in just a few minutes, depending on their length, making the whole experience fast and efficient.