To be certain that Pdfium.Net SDK is completely removed, you must make sure that the application is uninstalled.

Please follow all instructions below.

Step 1. On Windows 8.1, Open Search

Step 2. Search for “remove programs” and select “Add or remove programs”

Step 3. In the list of installed items, locate “Pdfium.Net SDK”.

Note: If you do not find an item with the name “Pdfium.Net SDK”, you do not have the application installed.

Step 4. Select “Uninstall”. The uninstall will take several seconds. When the uninstall completes, it will automatically be removed from the list of installed programs.

Step 5. That's all!