Python PiPDF2 get unwanted characters from PDF document using Google Colab

Question

I'm trying to extract text from a PDF file using Python. I'm using the PyPDF2 package (version 1.27.12) I run the following code:

Casos = 0
while Casos < registros:
  PDFfile= open(archivo.iloc[Casos,3], 'rb')
  pdfread=P2.PdfFileReader(PDFfile)

  i=0
  while i<pdfread.getNumPages():
    pageinfo=pdfread.getPage(i)
    Origen.append(archivo.iloc[Casos,1])
    Info.append(pageinfo.extractText())
    #print(i)
    i=i+1
  
  #print(i)
  Casos = Casos + 1

The code worked well before, however, right now, I get the following output which is different from that included in the PDF document:

['M idió efe ctiv am ente el impacto de X e n lam arca de la em presa. Intro dujo t ácticas inno v ado ras para']

The correct text is:

Midió efectivamente el impacto de X en la marca de la empresa. Introdujo tácticas innovadoras para

Wonder to know if any update or code modification is required, any observation will be appreciated.