I don't get a browse button, instead it says choose file....Add File or done adding files. When I click choose file it gives me, Camera Camcorder, Sound recorder or documents. If I click add file its says we have encountered a problem. Larry
You don't say what phone or tablet you are using. Some work differently than others.
Click on "Choose File" That is the same as "Browse"
Don't click on "Add File" button until you have selected a file to add and it shows in the line next to the button.
On my Android phone, I click on "Documents" and if the picture I want isn't right there, I click on the three bar icon on the upper left that signifies Menu. Then on the Menu, I scroll down a little and click on Gallery. There I find my resized image.