Qfyilyi

I have recently merged 20 pdf in 1 pdf via adobe. I have import the pdf in python with this code.

from PyPDF2 import PdfFileReader, PdfFileWriter

pdf_file = open ('/Users/cj/Desktop/PEI.pdf','rb')

newfile=open('rjtjj.txt','w')

pdf_reader= PdfFileReader (pdf_file)

pdf_writer= PdfFileWriter()

print(pdf_reader.numPages) 

n=pdf_reader.getNumPages()

for i in range(0, n-1):    

# pdf_writer.addPage(pdf_reader.getPage(i))

gft=pdf_reader.getPage(i)

newfile.write(gft.extractText())

pdf_file.close()

newfile.close()

I'm trying to use Vadersentiment to analyse the pdf. What i want to do is analyse individually the 20 pdf that are merged into 1.

from vaderSentiment.vaderSentiment import SentimentIntensityAnalyzer

analyzer = SentimentIntensityAnalyzer()

with open('rjtjj.txt', 'r') as f:

for line in f.read().split("n"):

vs=analyzer.polarity_scores(line)

I know my code is wrong, because it only gives me the first line of the entire pdf. I am new to this, i would really appreciate your help.
Thank you

Your problem really isn't about Vader sentiment analysis -- it is about correct extraction of text from a PDF.

Postscript's forth interpreter is Turing-complete, so some PDF documents are "hard" to parse. You didn't post your PDF so we can only guess at the issue. You might try using poppler's pdftotext command line utility instead. Ubuntu calls the package "poppler-utils"; on mac you would use brew install poppler. Running through pdf2ps & ps2ascii will sometimes offer different, and helpful, results.

If you continue to find it difficult to retrieve proper text from the PDF, you may want to contact whoever produced the PDF and settle on supplying the same information in a revised format.