Feb 19 2021 10:05 AM
Feb 19 2021 10:05 AM
We upgraded from SP13 to SPO at the start of the year. I have a Picture Library app on a modern Communications site where all of my old pictures from SP13 migrated with big, full-res thumbnails in Tiles library views. But all new uploads to this library native to SPO are displaying smaller, compressed, and blurry. I've been searching for answers for more than a month with no luck, and hoping someone who has encountered this previously may be able to help me sort it out.
Screenshot: Tiles view of my Picture Library with example low-res and high-res thumbnails.
The only difference I can spot between the images that work as desired and the ones that don't appears to be a Dimensions property in the info pane for all the old, migrated images - that's missing for the recent uploads. They're all JPG in the 150-250kb file size range, 600x250px. Downloading a copy of an image with the larger thumbnail and re-uploading it to the same library with a new name renders it in the smaller, blurry thumbnail. My working suspicion is that the new SPO library isn't creating/importing this Dimensions property on upload, the library is using that property to inform how it renders the thumbnails, and with it missing it's unable to create those higher-quality thumbnails we want. And I can't find any info on the web detailing how I can get that Dimensions property back for new uploads.
Screenshot: Details Pane for an older (high-res) and a newer (low-res) image with the Dimensions property missing in the newer one.
I've also unsuccessfully tried:
Ideally I need a solution that requires no code (e.g., no PowerShell) so I can offer a sustainable, self-service solution for my users. Anything a Site Collection Administrator can do via the GUI is fine.
Thanks for any help/ideas you can offer!
Feb 19 2021 01:10 PM
Feb 22 2021 01:53 PM
Hi @Robert Schouten - Thank you for your response!
Inspecting a full-res thumbnail alongside one that's not behaving as expected, I see both coming from the same https://[domain].sharepoint.com/_api/v2.1/drives/ directory.
Feb 28 2021 12:31 PM
Mar 02 2021 09:51 AM