If you installed Calibre on Linux, you can just convert the file at the command prompt using the command ebook-convert test. pdf output. mobi. Replace “test. pdf” with the full name of the PDF file, and “output. mobi” with the desired output file name.
The Metadata tab allows you to change the way the title, cover, author, and other descriptive info appears in the converted file. The Look & Feel tab lets you customize colors, text, and layout. The MOBI Output section offers various options that are specific to the MOBI format. The Heuristic Processing section is here in case you wind up with missing words or extra spaces in your MOBI file after converting. Since this option could mess up an otherwise-fine PDF-to-MOBI conversion, don’t check this box at first. If the converted file is has spacing issues, try converting again with this option selected.
If you don’t see the Save to disk option, expand the window so you can see the entire toolbar.
Other than being able to choose the output location, this tool doesn’t allow you to customize the MOBI file in any way. It’s just a quick tool for simpler conversions, such as scanned documents and other types of files without a bunch of special formatting. If you want more control over the way the MOBI file appears, use the Calibre method.