How to extract the title of a PDF document from within a script for renaming?

Question

I have thousands of PDF files in my computers which names are from a0001.pdf to a3621.pdf, and inside of each there is a title; e.g. \"aluminum carbona

Answer 1

What you need is a library that can actually read PDF files. For example pdfrw:

In [8]: from pdfrw import PdfReader

In [9]: reader = PdfReader('example.pdf')

In [10]: reader.Info.Title
Out[10]: 'Example PDF document'