我想使用Python自动化Acrobat Pro将PDF导出为XML。我已经使用正在运行的程序中的“另存为”对话框手动尝试了它，现在想通过Python脚本来完成它。我已经阅读了许多页面，包括Adobe SDK，SDK论坛，VB论坛的部分内容，但我没有运气。
我在这里阅读了Blish的问题："Not implemented" Exception when using pywin32 to control Adobe Acrobat
此页面：timgolden python / win32_how_do_i / generate-a-static-com-proxy.html
我错过了什么。我的代码是：
import win32com.client
import win32com.client.makepy
win32com.client.makepy.GenerateFromTypeLibSpec('Acrobat')
adobe = win32com.client.DispatchEx('AcroExch.App')
avDoc = win32com.client.DispatchEx('AcroExch.AVDoc')
avDoc.Open('C:\Documents and Settings\PC\Desktop\a_PDF.pdf', 'C:\Documents and Settings\PC\Desktop')
pdDoc = avDoc.GetPDDoc()
jObject = pdDoc.GetJSObject()
jObject.SaveAs('C:\Documents and Settings\PC\Desktop\a_PDF.xml', "com.adobe.acrobat.xml-1-00")
完整错误是：
Traceback (most recent call last):
File "<pyshell#31>", line 1, in <module>
jObject.SaveAs('C:\Documents and Settings\PC\Desktop\a_PDF.xml', "com.adobe.acrobat.xml-1-00")
File "C:\Python27\lib\site-packages\win32com\client\dynamic.py", line 511, in __getattr__
ret = self._oleobj_.Invoke(retEntry.dispid,0,invoke_type,1)
com_error: (-2147467263, 'Not implemented', None, None)
我猜它与make.py有关，但我不明白如何在我的代码中实现它。
我从我的代码中删除了这一行，并在运行时遇到了同样的错误：
win32com.client.makepy.GenerateFromTypeLibSpec('Acrobat')
然后我将这两行从'DispatchEX'更改为'Dispatch'并出现同样的错误：
adobe = win32com.client.Dispatch('AcroExch.App')
avDoc = win32com.client.Dispatch('AcroExch.AVDoc')
当我自己运行Dispatches然后再回调它时，我得到：
>>> adobe = win32com.client.DispatchEx('AcroExch.App')
>>> adobe
<win32com.gen_py.Adobe Acrobat 10.0 Type Library.CAcroApp instance at 0x18787784>
>>> avDoc = win32com.client.Dispatch('AcroExch.AVDoc')
>>> avDoc
<win32com.gen_py.Adobe Acrobat 10.0 Type Library.CAcroAVDoc instance at 0x20365224>
这是否意味着我应该只调用一次Dispatch？我拉了：
adobe = win32com.client.Dispatch('AcroExch.App')
并得到了同样的错误。
这个Adobe网站说：
AVDoc
Product availability: Acrobat, Reader
Platform availability: Macintosh, Windows, UNIX
Syntax
typedef struct _t_AVDoc* AVDoc;
A view of a PDF document in a window. There is one AVDoc per displayed document. Unlike a PDDoc, an AVDoc has a window associated with it.
PDDoc页面说：
A PDDoc object represents a PDF document. There is a correspondence between a PDDoc and an ASFile. Also, every AVDoc has an associated PDDoc, although a PDDoc may not be associated with an AVDoc.
我尝试了以下代码并得到了同样的错误：
import win32com.client
import win32com.client.makepy
pdDoc = win32com.client.Dispatch('AcroExch.PDDoc')
pdDoc.Open('C:\Documents and Settings\PC\Desktop\a_PDF.pdf')
jObject = pdDoc.GetJSObject()
jObject.SaveAs('C:\Documents and Settings\PC\Desktop\a_PDF.xml', "com.adobe.acrobat.xml-1-00")
如果我改变了同样的错误：
pdDoc = win32com.client.Dispatch('AcroExch.PDDoc')
到
pdDoc = win32com.client.gencache.EnsureDispatch('AcroExch.PDDoc')
就像这里：win32com.client.Dispatch works but not win32com.client.gencache.EnsureDispatch
答案 0 :(得分：5)
user2993272，你几乎就在那里：只有一行，你所拥有的代码应该完美无缺。
我将尝试以与您的问题相同的精神回答，并尽可能详细地向您提供。
This thread掌握您正在寻找的解决方案的关键：https://mail.python.org/pipermail/python-win32/2002-March/000260.html
我承认该帖子不是最容易找到的（根据内容的年龄，Google可能会将其评分为低分数。）。
具体来说，应用this建议将为您提供帮助：https://mail.python.org/pipermail/python-win32/2002-March/000265.html
为了完整性，这段代码应该完成工作，而不需要你手动修补dynamic.py（代码片段应该开箱即用）：
# gets all files under ROOT_INPUT_PATH with FILE_EXTENSION and tries to extract text from them into ROOT_OUTPUT_PATH with same filename as the input file but with INPUT_FILE_EXTENSION replaced by OUTPUT_FILE_EXTENSION
from win32com.client import Dispatch
from win32com.client.dynamic import ERRORS_BAD_CONTEXT
import winerror
# try importing scandir and if found, use it as it's a few magnitudes of an order faster than stock os.walk
try:
from scandir import walk
except ImportError:
from os import walk
import fnmatch
import sys
import os
ROOT_INPUT_PATH = None
ROOT_OUTPUT_PATH = None
INPUT_FILE_EXTENSION = "*.pdf"
OUTPUT_FILE_EXTENSION = ".txt"
def acrobat_extract_text(f_path, f_path_out, f_basename, f_ext):
avDoc = Dispatch("AcroExch.AVDoc") # Connect to Adobe Acrobat
# Open the input file (as a pdf)
ret = avDoc.Open(f_path, f_path)
assert(ret) # FIXME: Documentation says "-1 if the file was opened successfully, 0 otherwise", but this is a bool in practise?
pdDoc = avDoc.GetPDDoc()
dst = os.path.join(f_path_out, ''.join((f_basename, f_ext)))
# Adobe documentation says "For that reason, you must rely on the documentation to know what functionality is available through the JSObject interface. For details, see the JavaScript for Acrobat API Reference"
jsObject = pdDoc.GetJSObject()
# Here you can save as many other types by using, for instance: "com.adobe.acrobat.xml"
jsObject.SaveAs(dst, "com.adobe.acrobat.accesstext")
pdDoc.Close()
avDoc.Close(True) # We want this to close Acrobat, as otherwise Acrobat is going to refuse processing any further files after a certain threshold of open files are reached (for example 50 PDFs)
del pdDoc
if __name__ == "__main__":
assert(5 == len(sys.argv)), sys.argv # <script name>, <script_file_input_path>, <script_file_input_extension>, <script_file_output_path>, <script_file_output_extension>
#$ python get.txt.from.multiple.pdf.py 'C:\input' '*.pdf' 'C:\output' '.txt'
ROOT_INPUT_PATH = sys.argv[1]
INPUT_FILE_EXTENSION = sys.argv[2]
ROOT_OUTPUT_PATH = sys.argv[3]
OUTPUT_FILE_EXTENSION = sys.argv[4]
# tuples are of schema (path_to_file, filename)
matching_files = ((os.path.join(_root, filename), os.path.splitext(filename)[0]) for _root, _dirs, _files in walk(ROOT_INPUT_PATH) for filename in fnmatch.filter(_files, INPUT_FILE_EXTENSION))
# Magic piece of code that should get everything working for you!
# patch ERRORS_BAD_CONTEXT as per https://mail.python.org/pipermail/python-win32/2002-March/000265.html
global ERRORS_BAD_CONTEXT
ERRORS_BAD_CONTEXT.append(winerror.E_NOTIMPL)
for filename_with_path, filename_without_extension in matching_files:
print "Processing '{}'".format(filename_without_extension)
acrobat_extract_text(filename_with_path, ROOT_OUTPUT_PATH, filename_without_extension, OUTPUT_FILE_EXTENSION)
我在WinPython x64 2.7.6.3，Acrobat X Pro
上测试了这个