I have been seeing recently that DropBox opens PDF files stored in it through its own reader. I would like to open all my PDF files through Adobe, no matter where their location is. I do not want to use this extra functionality provided by DropBox.

How can I disable this option in DropBox? I could not find any option to disable PDF viewing. Is it a feature that must be added in future by DropBox?

• Yes, this is a pain. Despite selecting "More" > "Open With" and picking Adobe Reader "Always" (which is then set as a default app within Dropbox itself - managed through Dropbox settings) it still opens Dropbox's internal PDF viewer when simply tapping the PDF file inside Dropbox. You must still select "More" > "Open With" each time, only now you don't need to pick "Adobe Reader" from the list (if you have more than 1 PDF viewer app installed). – MrWhite Dec 22 '14 at 19:37

In Dropbox, next to your file.pdf there is an arrow button (on the right), click on it and a menu will appear with options :

• Share, Add to favorites, Delete and More.

Click on More and then it will display the options :

• Rename, Move, Open with and Export.

Click on Open with and just select the application you want your file.pdf to open with.