Add the App to your site, using SharePoint menu.

Grant the App write permissions to the library you wish to save thumbanils to.

Open the App configuration page.

Control the default settings

Choose Create from App page

Override the default settings if needed

Drag image file into drop zone

Preview generated thumbnail, then save to target document library



View the target library for new thumbnail

Choose Create from App page

Override the default settings if needed

Select Upload File link (as drag and drop not supported)

Select New Picture to upload an image Choose a file from the local system Save default details for the file Close the window containing the Images to Convert Library On the now active create thumbnail page Refresh the file selector Then choose the image to convert Preview generated thumbnail, then save to target document library

Using site settings, delete the App.