PocketBookshelf 自炊派PDF一覧表示 is a widget that displays PDF files transferred to your smartphone or tablet, making it an ideal tool for self-published authors. It is easy to operate, and you can use it by installing it and setting up the widget. You can also change the size of the widget. When you select a file on the widget, you will be able to view it using your usual PDF viewer.

The widget can create a bookshelf list automatically, but if you want to update the bookshelf immediately, you can select "update bookshelf" from the app screen. Please note that it may take some time to create the bookshelf for the first time. The widget can display PDF files in the internal memory, but if you want to display files on an SD card, you need to set up the PDF folder from the app screen. If you select the parent folder, it will display all the files in the subfolders.