Extracting text from pdf using Python and Pypdf2

Amir picture Amir · Mar 12, 2017 · Viewed 19.6k times · Source

I want to extract text from pdf file using Python and PYPDF package. This is my pdf fie and this is my code:

import PyPDF2
opened_pdf = PyPDF2.PdfFileReader('test.pdf', 'rb')

p=opened_pdf.getPage(0)

p_text= p.extractText()
# extract data line by line
P_lines=p_text.splitlines()
print P_lines

My problem is P_lines cannot extract data line by line and results in one giant string. I want to extract text line by line to analyze it. Any suggestion on how to improve it? Thanks! This is the string that code returns:

[u'Ingredient information for chemicals subject to 29 CFR 1910.1200(i) and Appendix D are obtained from suppliers Material Safety Data Sheets (MSDS)** Information is based on the maximum potential for concentration and thus the total may be over 100%* Total Water Volume sources may include fresh water, produced water, and/or recycled water0.01271%72.00%7732-18-5Water0.00071%4.00%1310-73-2Sodium Hydroxide0.00424%24.00%533-74-4DazomatBiocidePumpcoPlexcide 24L0.00828%75.00%Organic phosphonic acid salts0.00276%25.00%67-56-1Methyl AlcoholScale InhibitorPumpcoPlexaid 6730.00807%30.00%7732-18-5Water0.00188%7.00%Polyethoxylated alcohol surfactants0.00753%28.00%9003-06-9Ammonium Salts0.00941%35.00%64742-47-8Petroleum DistillateFriction ReducerPumpcoPlexslick 9210.05029%60.00%7732-18-5Water0.03353%40.00%7647-01-0Hydrogen ChlorideHydrochloric AcidPumpcoHCL9.84261%100.00%14808-60-7Crystaline SilicaProppantPumpcoSand90.01799%100.00%7732-18-5WaterCommentsMaximumIngredientConcentrationin HF Fluid(% by mass)**MaximumIngredientConcentrationin Additive(% by mass)**Chemical AbstractService Number(CAS #)IngredientsPurposeSupplierTrade NameHydraulic Fracturing Fluid Composition:2,608,032Total Water Volume (gal)*:7,595True Vertical Depth (TVD):GasProduction Type:NAD27Long/Lat Projection:32.558525Latitude:-97.215242Longitude:Ole Gieser Unit D 6HWell Name and Number:XTO EnergyOperator Name:42-439-35084API Number:TarrantCounty:TexasState:12/10/2010Fracture DateHydraulic Fracturing Fluid Product Component Information Disclosure']

Screenshot of the file: enter image description here

Answer

Smart Manoj picture Smart Manoj · Mar 12, 2017
from pdfminer.pdfinterp import PDFResourceManager, PDFPageInterpreter
from pdfminer.converter import TextConverter
from pdfminer.layout import LAParams
from pdfminer.pdfpage import PDFPage
from io import StringIO

def convert_pdf_to_txt(path):
    rsrcmgr = PDFResourceManager()
    retstr = StringIO()
    codec = 'utf-8'
    laparams = LAParams()
    device = TextConverter(rsrcmgr, retstr, codec=codec, laparams=laparams)
    fp = file(path, 'rb')
    interpreter = PDFPageInterpreter(rsrcmgr, device)
    password = ""
    maxpages = 0
    caching = True
    pagenos=set()

    for page in PDFPage.get_pages(fp, pagenos, maxpages=maxpages, password=password,caching=caching, check_extractable=True):
        interpreter.process_page(page)

    text = retstr.getvalue()

    fp.close()
    device.close()
    retstr.close()
    return text
print(convert_pdf_to_txt('test.pdf').strip().split('\n\n'))

Output

Hydraulic Fracturing Fluid Product Component Information Disclosure

Fracture Date State: County: API Number: Operator Name: Well Name and Number: Longitude: Latitude: Long/Lat Projection: Production Type: True Vertical Depth (TVD): Total Water Volume (gal)*:

12/10/2010 Texas Tarrant 42-439-35084 XTO Energy Ole Gieser Unit D 6H -97.215242 32.558525 NAD27 Gas 7,595 2,608,032

Hydraulic Fracturing Fluid Composition:

Trade Name

Supplier

Purpose

Ingredients

Chemical Abstract Service Number

(CAS #)

Maximum Ingredient

Concentration

in Additive ( by mass)**

Comments

Maximum Ingredient

Concentration

in HF Fluid ( by mass)**

Water Sand HCL

Pumpco Pumpco

Proppant Hydrochloric Acid

Plexslick 921

Pumpco

Friction Reducer

Plexaid 673

Pumpco

Scale Inhibitor

Plexcide 24L

Pumpco

Biocide

Crystaline Silica

Hydrogen Chloride Water

Petroleum Distillate Ammonium Salts Polyethoxylated alcohol surfactants Water

Methyl Alcohol Organic phosphonic acid salts

Dazomat Sodium Hydroxide Water

7732-18-5 14808-60-7

7647-01-0 7732-18-5

64742-47-8 9003-06-9

7732-18-5

67-56-1

533-74-4 1310-73-2 7732-18-5

100.00 100.00

90.01799 9.84261

40.00 60.00

35.00 28.00 7.00 30.00

25.00 75.00

24.00 4.00 72.00

0.03353 0.05029

0.00941 0.00753 0.00188 0.00807

0.00276 0.00828

0.00424 0.00071 0.01271

  • Total Water Volume sources may include fresh water, produced water, and/or recycled water ** Information is based on the maximum potential for concentration and thus the total may be over 100

Ingredient information for chemicals subject to 29 CFR 1910.1200(i) and Appendix D are obtained from suppliers Material Safety Data Sheets (MSDS)