Converting a complex Word document to HTML and showing it on your existing website may not be easy. If you want to display a complex document with extensive custom styling on your website (for example, in WordPress) without major design issues, please try this solution.
- On the WordToHTML.net upload & convert your document with the Embed images and the Full page mode turned on:

- Then you download the converted HTML file:

- After that, you upload that HTML file into your WordPress Media Library:

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Now you need to get the URL of the uploaded HTML file. You can do that by clicking on this demo.html in the Media Library and copying the URL of this HTML to the clipboard. Then paste it into a notepad to use it later:
- Now you can create a post or page in WordPress and copy & paste the iframe HTML code shown below in the WordPress Code editor. In the src attribute, you need to enter the URL of the HTML file from Notepad. You can also enter a page title you want.
<iframe style="border: none; width: 100%; height: 100vh;" title="Title of the page" src="https://wordtohtml.net/content/wp-content/uploads/demo.html" frameorder="0"></iframe>

If you’re using the new WordPress block editor, you can switch to code view like this:

- Then you can you can publish this page and view it in a browser. Example page looks like this…
Please note that if your converted HTML page is long, the browser will show this page with a scrollbar on the right side. This is how an IFRAME renders in browsers. Unfortunately, there is no easy way to fix this. Also, please note that Google or any other search engine will index the URL of the HTML file from the WordPress Media Library. The parent page might get a hint of that content, but Google doesn’t treat it as if it were inline. From an SEO perspective, an iframe is basically saying: “Here’s another page inside mine.” It doesn’t merge ranking signals.
So if you want the content to help the parent page rank, you should place HTML directly in the page. IFrames are fine for embedding complex Word documents, but weak for SEO. If your goal is purely presentation, an iframe is okay. If your goal is indexing/ranking, serve the content inline.
The good thing is that you can modify your source Word document, convert it again on WordToHTML.net, and delete the existing HTML file from the WordPress Media Library and upload the newly converted HTML file again. If you keep the same HTML file name, you will not have to change anything on the page with an iframe HTML code.
Keep in mind that if your document has many big images and you convert it with the Embed images option turned on, the converted HTML file may be very big (many megabytes), and it could load slowly on your website. In this case, we recommend converting the document without embedding images in HTML:

Then you download HTML with media files:

Now enter the URL of the images folder on your website, by default WordPress is storing images in /wp-content/uploads/, and then you click the Next button to download a zip file with HTML and all the images.

Then you unzip the downloaded file and copy the HTML file and images to your WordPress Media Library. The rest of the process is the same (copy URL to the clipboard and add it to an iframe code)…
This “iframe solution” can work on any other website as well. It’s not only for WordPress. The main thing is to upload the converted HTML file to your website (either via your website admin panel or directly via FTP). Then, just enter the iframe code mentioned above with the correct HTML file URL on the webpage that needs to show that converted HTML file.
