The Hitchhiker's Guide to ENVImet allows you to collect pages and compile your personal PDF book or a plain screen output.

To compile your book, select your pages while reading them simply by pressing the “Add/remove page to eBook” button at the bottom of each page.
On this page, you can then finally re-arrange the pages or delete pages before creating your eBook.

For more information on this plugin please visit https://www.dokuwiki.org/plugin:bookcreator