This is an extremely simple and useful application to remove pages from PDF files, and to delete PDF files from the device. It is completely free and has no in-app purchases.

You just need to install this application, and you can start using it immediately. You don't need to do anything else.

The app is extremely easy to use. You can select the file you want to remove from the PDF document, and you will be able to remove the pages from the document. After that, you can give a new name to the document, and you can save it.