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DPChallenge Forums >> Tips, Tricks, and Q&A >> Question about Microsoft's OneDrive
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06/05/2014 12:14:45 AM · #1
I am helping a friend with her baby book that she will get printed.
I am collecting some useful page backgrounds (jpg's) as well as assorted clipart for decorations - those ones I made into PNGs (because that is what the printing software can handle) with transparent backgrounds.

I then uploaded them to my OneDrive folder and shared the link with my friend.

The thing that is bugging me is that the PNG files appear in the thumbnail/preview as if they had a BLACK background instead of a transparent one:



However, once we download the files, they really are still proper PNGs with transparency:



Why is that, and is there a way to change the appearance of the thumbnails/previews?
06/05/2014 07:43:29 AM · #2
My guess is that when OnedDrive generates the thumbs, it is always generating a JPEG, which does not support transparency. If this is the case, I doubt that you can change the behavior from your end.
06/05/2014 05:37:14 PM · #3
Thanks, Fritz, I'm sure you're right.

Pity about the black, though.... most other places that don't support transparency show it as white. Ah well...
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