We are working on releasing the ability to Block Download for other file types now! You can currently block download for office file types!

Earlier this year, across the various options of sharing links, we introduced the capability of “block download” enabling you to keep your content in the cloud by not allowing users to download Office files. This capability helps you avoid out of date copies and maintain access control. Today, we are glad to announce that shortly, you will be able to apply the same functionality to images, 3D, PDF files and more.

https://techcommunity.microsoft.com/t5/Microsoft-OneDrive-Blog/Celebrating-top-OneDrive-moments-at-Ignite-2019/ba-p/963182

OneDrive for Business users are now able to share a link to Office documents that blocks recipients from downloading copies but still allows them to view the document in Office Online.

Users can create links that block download by using the common Sharing experience that exists across Office 365. By going into Link Settings they’ll be able to toggle the “block download” option for view-only links.

We’ve completed rollout for “anyone” and “people in my organization” links, and are working on enabling it for the remaining link types. “Specific people” links are enabled on web endpoints and we’re working on native clients.

We are working on bringing this same capability to other file types.

Users will be able to share a link to Office documents that blocks recipients from downloading copies but still allows them to view the document in Office Online.

Users can create links that block download by using the common Sharing experience that exists across Office 365. By going into Link Settings they’ll be able to toggle the “block download” option for view-only links.

We’ll be gradually rolling this out to customers in late November, and the roll out will be completed worldwide by the end of January.

At SharePoint Conference North America this past May, we demonstrated the ability to create and send sharing links that blocks recipients from downloading the file. In this first iteration, this feature will be supported for Word, Excel, and PowerPoint documents.

We will be shipping this to OneDrive for Business and SharePoint users later this year.

We’re still interested in this feature. No other updates to share right now.

Thanks for the suggestion!