PDF-Extractor/demo.py at master · trkhoi/PDF-Extractor · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
from __future__ import division
import os
import re
import numpy as np
import pdftotext
from difflib import SequenceMatcher
from nltk.tokenize import word_tokenize
from nltk.corpus import stopwords


# tabula.convert_into("VN101466/SI_HANV07541400.pdf", "output.csv", output_format="csv", pages='all')

keyWord =  {"VN101466" : ["From", "To", "Booking No.", "Date", "Shipper Name & Address", "Consignee Name & Address", "Notify Party", "Port of Loading",
                        "Port of Discharge", "Place of Delivery", "Vessel", "Etd", "Container/Seal No.", "Packages", "Description of Goods", "G.W (KGS)",
                        "CBM", "Remarks", "Payment"],
            "VN103933" : ["Shipper", "Reference No.", "Booking No.", "Consignee", "TO", "FROM", "TEL", "ATTN", "E-MAIL", "M.B/L Type", "Notify",
                        "HS Code", "M.Vessel/Voyage", "ETD", "Port of Loading", "Port of Discharge", "Delivery"],
            "VN104021" : ["To", "From", "Atnn", "Remark", "SHIPPER", "DATE", "S/O NO", "CONSIGNEE", "HS CODE", "NOTIFY", "ALSO NOTIFY", "VESSEL / VOYAGE", "PLACE OF RECEIPT",
                        "PORT OF LOADING", "PORT OF DISCHARGE", "PLACE OF DELIVERY", "FINAL DESTINATION", "JOB No.", "SOB DATE", "ETD DATE", "MOVEMENT"]}


if __name__ == '__main__':
    key = list(keyWord.keys())
    for i in range(len(keyWord)):
        print("%d. %s" % (i, key[i]))
    index = input("Please choose a format: ")
    format = key[int(index)]
    file = os.listdir(format)
    file = list(filter(lambda ef: ef[0] != "." and ef[-3:] == "pdf", file))

    file = ["SI_HANV07496600.pdf"]
    for filename in file:
        result = []
        # Covert PDF to string by page
        print(filename)

        with open(format+"/"+filename, "rb") as f:
            pdf = pdftotext.PDF(f)
        if (pdf[0] != ""):
            result = pdf

        wordBlockList = [] # Store word blocks line by line
        lineList = [] # Store each line

        for page in result:
            print(page)
            page = page.replace(":", "")
            lineSplitList = page.split("\n")
            for line in lineSplitList:
                lineList.append(line)
                lineSplit = re.split(r'\s{4,}', line)
                lineSplit = [block.strip() for block in lineSplit]
                wordBlockList.append(lineSplit)
                # print(lineSplit)

        extracted = {}

        # Find information by keyWord
        for line in wordBlockList:
            lineLength = len(line)
            for i in range(lineLength):
                if (line[i] in keyWord[format]):
                    extracted[line[i]] = ""

                    # On the same line with keyWord
                    if (i + 1 < lineLength):
                        if (line[i+1] not in keyWord[format]):
                            extracted[line[i]] += line[i+1]

                    # Below keyWord line
                        # Same position in line
                    if (extracted[line[i]] == ""):
                        # print(line[i])
                        index = wordBlockList.index(line) + 1
                        stringIndex = lineList[index-1].index(line[i])
                        space = 0

                        while (True):

                            if (index == len(wordBlockList) - 1): # or i >= len(wordBlockList[index])
                                break

                            if (i + 1 < lineLength):
                                stopIndex = lineList[wordBlockList.index(line)].index(line[i+1])
                            else:
                                stopIndex = len(lineList[index])

                            informBlock = re.split(r'\s{4,}', lineList[index][stringIndex:stopIndex])
                            # print(informBlock)
                            if (set(informBlock) == {""}):
                                if (space == 1):
                                    break
                                space += 1
                                index += 1
                                continue


                            if (informBlock[0] not in keyWord[format] and informBlock[0] != ""):
                                if (informBlock[0] in wordBlockList[index]):
                                    extracted[line[i]] += informBlock[0] + '\n'
                                else:
                                    blockIndex = -1
                                    for k in range(len(wordBlockList[index])):
                                        if (SequenceMatcher(None, informBlock[0], wordBlockList[index][k]).ratio() > 0.9 and abs(lineList[index].index(wordBlockList[index][k]) - stringIndex) <= 10):
                                            print(wordBlockList[index][k])
                                            extracted[line[i]] += wordBlockList[index][k] + '\n'
                                            blockIndex = k
                                            break
                                    if (blockIndex == -1):
                                        break
                            else:
                                if (space == 1):
                                    break
                                elif (informBlock[0] == ""):
                                    space += 1
                                else:
                                    break
                            index += 1

                        # Same block order
                    if (extracted[line[i]].strip() == ""):
                        # print(line[i])
                        index = wordBlockList.index(line) + 1
                        # if (index == len(wordBlockList) - 1 or i >= len(wordBlockList[index])):
                        #     continue
                        stringIndex = lineList[index-1].index(line[i])
                        # space = 0
                        #
                        # while (True):
                        #     if (index == len(wordBlockList) - 1): # or i >= len(wordBlockList[index])
                        #         break
                        #
                        #     if (i + 1 < lineLength):
                        #         stopIndex = lineList[wordBlockList.index(line)].index(line[i+1])
                        #     else:
                        #         stopIndex = len(lineList[index])
                        #
                        #     informBlock = re.split(r'\s{4,}', lineList[index][stringIndex:stopIndex])
                        #     if (set(informBlock) == {""}):
                        #         if (space == 1):
                        #             break
                        #         space += 1
                        #         index += 1
                        #         continue
                        #
                        #     # print(informBlock)
                        #     if (informBlock[0] not in keyWord[format] and informBlock[0] in wordBlockList[index] and informBlock[0] != ""):
                        #         extracted[line[i]] += informBlock[0] + '\n'
                        #     else:
                        #         break
                        #     index += 1
                        space = 0
                        while (True):
                            if (index == len(wordBlockList) - 1 or i >= len(wordBlockList[index])): #
                                break

                            if (wordBlockList[index][i] not in keyWord[format]):
                                if (abs(lineList[index].index(wordBlockList[index][i]) - stringIndex) <= 10):
                                    extracted[line[i]] += wordBlockList[index][i] + '\n'
                                else:
                                    space += 1
                                if (space == 2):
                                    break
                            else:
                                break
                            index += 1

        with open(format+"/"+filename[:-3]+"txt", "w+") as f:
            for e in extracted:
                f.write("-----------------------\n")
                f.write(e + ":\n" + extracted[e] + "\n")

# tokens = word_tokenize(text)
# punctuations = ['(',')',';',':','[',']',',']
# stop_words = stopwords.words('english')
# keywords = [word for word in tokens if not word in stop_words and not word in punctuations]

# k = cv2.waitKey(0)
# if k == 27:
#     cv2.destroyAllWindows()