You might see that the Dropbox Community team have been busy working on some major updates to the Community itself! So, here is some info on what’s changed, what’s staying the same and what you can expect from the Dropbox Community overall.
Forum Discussion
PDF preview using Windows EXplorer
This is for my work account. We use smart sync at work.
Using Windows Explorer if I open a folder I have never been to and there are PDFs present. I will then click on said PDF. A preview pops up...
I have been grappling with this exact issue ever since I set up a new laptop and installed Dropbox. Searched everywhere on the web, and this finally worked! I hope this helps someone else. The key to this is actually SIGING OUT of Dropbox. I did this by right clicking on the Dropbox icon in the taskbar, selecting the circle with my initials at the top right, clicking on "preferences", then selecting the "account" option at the top. Then you will see the little box that says "sign out" next to your account name. Then I uninstalled Dropbox and reinstalled it, and signed in during the setup process. BTW, I have everything now set to download locally. I don't know if that makes a difference, but it worked! Good luck.
I have the same problem on Windows 10 using SmartSync.
I have a lot of big PDFs stored in my DropBox.
As long as the PDFs are in the cloud (grey round icon with the white cloud) I can see PDF previews.
When I open a PDF file, it get's downloaded, and it just shows the Adobe Reader Icon. No more Preview.
So after opening a file it gets downloaded on my computer (green round icon with white chechmark.)
In Adobe Reader I activated the option for PDF previews in Windows Explorer.
This works for files that are not in my Dropbox.
This bug is really annoying, because I need to browse a lot of folders with huge PDF files
Opening them to see their content takes very long.
It would be nice if Dropbox could preview .tif image files.
