To be able to use the DeDRM plugin for calibre, it is necessary to install calibre first. Most PDB books we purchsed and downloaded that aren't free are encrypted with DRM-digital rights management-protection, a machanism that prevents you from using PDB on all your mobile devices.

Coursera githubīut here comes another fetal problem. The best resolution is to convert pdb to PDF or convert pdb to ePub. So as you known pdb is not so convenient if we want to read them on any devices. And what's more important, PDB is a format mostly used to view books on Palm mobile devices but not on Sony eReader or iPad or even more mobile devices. However it lacks some of the features compared with more modern eBook formats for example only providing a very basic contents table. The format features RLE compression, and supports reflowable content. We will get eBooks in PDB format if we purchase from ereader. In this post, I'm going to show you what's a pdb file, and how to remove drm from pdb, how to convert pdb to pdf, epub, mobi, etc.

Convert pdb to epub