Superfluous whitespace found?

[ak52]

Hello,
I am facing the same issue with certain pdfs.
I have tried the following: I tried changing the pdf formats to PDF/A from here:
https://www.pdftron.com/pdf-tools/pdfa-converter/
But when i tried to extract the text ,it was completely blank

Is there any other alternative?

I am trying to extract certain words from the pdf and transfer them to a list.
If there is abetter way of doing this linkly let me know,Here is my code.

def read_data_from_pdf_using_pypdf(key_phrases_list, file_name):
    print "File Name:", file_name
    final_data_list_unchecked = []
    # open the pdf file
    object = PyPDF2.PdfFileReader(file_name)

    # get number of pages
    NumPages = object.getNumPages()
    print "Number of pages ", NumPages
    for page_number_counter in range(NumPages):
        if page_number_counter is 1:
            print "Please wait..."
        # print "Page Number:", page_number_counter
        # get page object
        PageObj = object.getPage(page_number_counter)
        # extract text from page object
        text = PageObj.extractText()
        # split texts and add them to a list
        page_text_list = text.split()

        # print page_text_list
        print "Length of list is", len(page_text_list)

        # loops through all elements in the key phrase list
        for key_phrase_counter in range(len(key_phrases_list)):
            # print "Key phrase counter loop:", key_phrase_counter
            # print "Key word search:", key_phrases_list[key_phrase_counter]
            # loop through the list search for keywords.
            for loop_text in page_text_list:
                if loop_text.encode('utf-8').startswith(key_phrases_list[key_phrase_counter]):
                    print loop_text
                    # append the elements to list
                    final_data_list_unchecked.append(loop_text)
    # print "Total number of signals with duplicates:", len(final_data_list_unchecked)
    # print final_data_list_unchecked
    # remove duplicates from list
    final_data_list_checked = list(dict.fromkeys(final_data_list_unchecked))
    # print "Total number of signals:", len(final_data_list_checked)
    # print final_data_list_checked
    return final_data_list_checked