[The Holy]

Hi,

I have a digital library consisting of only epub and pdf files. My process for epub is download metadata and cover -> Use the "Polish books" plugin to embed the metadata and change the cover in the epub file to the one downloaded.

This unfortunately only works for epub and azw3. With the "Embed metadata" plugin i can, as the name suggests, embed the metadata into my pdf files but i haven´t been able to find a way to embed covers.

Is there a way to embed the covers that calibre downloads in bulk to all my pdfs, just like the polish books plugin does? I´ll mention that i don´t want to convert the pdfs to epubs.


Also, when the books are polished, a new epub is created and the original file is renamed to ORIGINAL_EPUB. Is there a good reason to keep the original files? I know the cover should stay in the folder since it needs to be there for calibre to display it in the calibre program. Does that apply to the separate metadata file as well or can they also be deleted along with the original epub?

Thanks in advance!