I'm trying to extract information from PDF files to popular a table without having to read the PDF. I just can not find any reference to how to do this.
I need, for example, to find the authors and date of publication of this article:
I would like package / function tips in python or r.
PDF files can have special fields to store this data, such as author and date, but I opened the PDF you sent and in them these fields are not filled:
Sothere'snomagic,you'llneedtoparsethetextandextractthedatadirectly,sincethePDFdoesnotprovidethisdatainanorganizedway.
Ifyoudonotknowtheexacttexttobesearchedfor,youcanmakepossi-bilitiesandmakeyourprogramtryeverypossibilityuntilyoufindonethatcangetthedata.
Forexample,inthePDFlisted,youcantrycomparingeachlinetothePDFnametofindthefulltitle,andconsiderthenextlineastheauthor.
AnotheroptionistolookuptheISSNacronym,andifyoufindit,youcanpickupthenumberandlookforsiteslike link and extract the data you want from the site rather than grabbing the PDF.
