Webflow's hosting does not provide an out-of-the-box feature to automatically download a PDF file when visiting a link with no suffix. However, you can achieve this by employing some workarounds.
One approach is to create a custom JavaScript function that triggers the download when the link is clicked. Here's an example of how you can implement it:
1. Upload your PDF file to a file hosting service or cloud storage platform like Google Drive, Dropbox, or Amazon S3.
2. Obtain the direct download link for the PDF file from the file hosting service. It should be a URL ending with the ".pdf" file extension.
3. In your Webflow project, add a custom code block by selecting your page or an individual element and choosing the "Custom Code" option.
4. Within the custom code block, include the following JavaScript snippet:
```javascript
```
5. Next, append a class name or an ID to the link element on your Webflow page. For example, you can add a class name like "`download-link`" to the link element through the Webflow Designer.
6. To trigger the custom JavaScript function when the link is clicked, add an event listener in another custom code block, like this:
```javascript
```
Remember to replace `".download-link"` with the appropriate selector based on how you've assigned the class or ID to your link element.
With these modifications in place, when a user clicks on the link, the JavaScript function will execute, and the PDF file will be automatically downloaded.
Please note that these workarounds utilize custom JavaScript and may require knowledge of coding.