Python 从pdf解析注释_Python_Pdf

Python 从pdf解析注释

python pdf

Python 从pdf解析注释,python,pdf,Python,Pdf,我想要一个python函数，它接受pdf并返回文档中注释的文本列表。我已经研究了pythonpoppler（），但我不知道如何让它提供任何有用的东西我找到了get\u annot\u mapping方法，并修改了提供的演示程序，通过self.current\u page.get\u annot\u mapping（）调用它，但我不知道如何处理AnnotMapping对象。它似乎没有完全实现，只提供了copy方法如果有任何其他库提供此功能，也可以。我从未使用过此功能，也不想要此类功能，但我发现

我想要一个python函数，它接受pdf并返回文档中注释的文本列表。我已经研究了pythonpoppler（），但我不知道如何让它提供任何有用的东西

我找到了

get\u annot\u mapping

方法，并修改了提供的演示程序，通过

self.current\u page.get\u annot\u mapping（）

调用它，但我不知道如何处理AnnotMapping对象。它似乎没有完全实现，只提供了copy方法

如果有任何其他库提供此功能，也可以。

我从未使用过此功能，也不想要此类功能，但我发现-此链接包含有关基本用法的信息，可能这就是您要找的？

我从未使用过此功能，也不想要此类功能，但我发现-此链接包含有关基本用法的信息，可能这就是您要查找的内容？

结果表明绑定不完整。现在已经修好了

结果是绑定不完整。现在已经修好了

以防万一有人在找工作代码。这是我使用的脚本

import poppler
import sys
import urllib
import os

def main():
  input_filename = sys.argv[1]
    # http://blog.hartwork.org/?p=612
  document = poppler.document_new_from_file('file://%s' % \
    urllib.pathname2url(os.path.abspath(input_filename)), None)
  n_pages = document.get_n_pages()
  all_annots = 0

  for i in range(n_pages):
        page = document.get_page(i)
        annot_mappings = page.get_annot_mapping ()
        num_annots = len(annot_mappings)
        if num_annots > 0:
            for annot_mapping in annot_mappings:
                if  annot_mapping.annot.get_annot_type().value_name != 'POPPLER_ANNOT_LINK':
                    all_annots += 1
                    print('page: {0:3}, {1:10}, type: {2:10}, content: {3}'.format(i+1, annot_mapping.annot.get_modified(), annot_mapping.annot.get_annot_type().value_nick, annot_mapping.annot.get_contents()))
    
  if all_annots > 0:
    print(str(all_annots) + " annotation(s) found")
  else:
    print("no annotations found")

if __name__ == "__main__":
    main()

以防万一，有人正在寻找一些工作代码。这是我使用的脚本

import poppler
import sys
import urllib
import os

def main():
  input_filename = sys.argv[1]
    # http://blog.hartwork.org/?p=612
  document = poppler.document_new_from_file('file://%s' % \
    urllib.pathname2url(os.path.abspath(input_filename)), None)
  n_pages = document.get_n_pages()
  all_annots = 0

  for i in range(n_pages):
        page = document.get_page(i)
        annot_mappings = page.get_annot_mapping ()
        num_annots = len(annot_mappings)
        if num_annots > 0:
            for annot_mapping in annot_mappings:
                if  annot_mapping.annot.get_annot_type().value_name != 'POPPLER_ANNOT_LINK':
                    all_annots += 1
                    print('page: {0:3}, {1:10}, type: {2:10}, content: {3}'.format(i+1, annot_mapping.annot.get_modified(), annot_mapping.annot.get_annot_type().value_nick, annot_mapping.annot.get_contents()))
    
  if all_annots > 0:
    print(str(all_annots) + " annotation(s) found")
  else:
    print("no annotations found")

if __name__ == "__main__":
    main()

有人问一个问题。我在那里尝试了代码示例，直到我做了一些功能和外观上的更改，它才对我起作用

#/usr/bin/ruby
需要“pdf阅读器”
ARGV.each do|文件名|
PDF:：Reader.open（filename）do | Reader|
放置“文件：#{filename}”
放入“页面\t注释”
reader.pages.each do| page|
annots\u ref=页面属性[：annots]
如果没有注释(参考),
actual_annots=annots_ref.map{| a | reader.objects[a]}
实际的，实际的|
除非实际内容不是[：内容].nil？
放入“{page.number}\t{actual\u annot[：Contents]}”
结束
结束
结束
结束
结束
结束

如果另存为

pdfannot.rb

，

chmod+x

，并放入您最喜爱的

路径

目录中，用法如下：

./pdfannot.rb <path>

/pdfannot.rb

第一次编写/编辑/混用Ruby代码，所以非常愿意听取建议。嗯

顺便说一句，早点发现这个问题可以让我避免双重工作。希望这个问题将来能得到更多的关注，以便更容易找到。

有人问了一个问题。我在那里尝试了代码示例，直到我做了一些功能和外观上的更改，它才对我起作用

#/usr/bin/ruby
需要“pdf阅读器”
ARGV.each do|文件名|
PDF:：Reader.open（filename）do | Reader|
放置“文件：#{filename}”
放入“页面\t注释”
reader.pages.each do| page|
annots\u ref=页面属性[：annots]
如果没有注释(参考),
actual_annots=annots_ref.map{| a | reader.objects[a]}
实际的，实际的|
除非实际内容不是[：内容].nil？
放入“{page.number}\t{actual\u annot[：Contents]}”
结束
结束
结束
结束
结束
结束

如果另存为

pdfannot.rb

，

chmod+x

，并放入您最喜爱的

路径

目录中，用法如下：

./pdfannot.rb <path>

/pdfannot.rb

第一次编写/编辑/混用Ruby代码，所以非常愿意听取建议。嗯

顺便说一句，早点发现这个问题可以让我避免双重工作。希望这个问题将来能得到更多的关注，以便更容易找到。

您肯定应该看看

PyPDF2

。这个惊人的库有着惊人的潜力，你可以从PDF中提取任何东西，包括图片或评论。试着从检查AcrobatReaderDC（Reader）在PDF评论中能给你什么开始。拿一个简单的PDF，用Reader对其进行注释（添加一些注释），在右上角的注释选项卡中，单击水平的三个点，然后单击

将所有内容导出到数据文件…

，然后选择扩展名为

xfdf

的格式。这将创建一个奇妙的xml文件，您可以对其进行解析。格式非常透明和不言而喻

但是，如果您不能依赖用户单击此按钮，而是需要使用python以编程方式从PDF中提取相同的数据，请不要绝望，有一个解决方案。（灵感来自）

先决条件：

PyPDF2（

pip安装PyPDF2

）

读取器在上述xfdf文件中提供的内容如下所示：

<?xml version="1.0" ?>
<xfdf xml:space="preserve" xmlns="http://ns.adobe.com/xfdf/">
    <annots>
        <caret IT="Replace" color="#0000FF" creationdate="D:20190221151519+01'00'" date="D:20190221151526+01'00'" flags="print" fringe="1.069520,1.069520,1.069520,1.069520" name="72f8d1b7-d878-4281-bd33-3a6fb4578673" page="0" rect="636.942000,476.891000,652.693000,489.725000" subject="Inserted Text" title="Admin">
            <contents-richtext>
                <body xfa:APIVersion="Acrobat:19.10.0" xfa:spec="2.0.2" xmlns="http://www.w3.org/1999/xhtml" xmlns:xfa="http://www.xfa.org/schema/xfa-data/1.0/">
                    <p dir="ltr">
                        <span dir="ltr" style="font-size:10.5pt;text-align:left;color:#000000;font-weight:normal;font-style:normal"> comment1</span>
                    </p>
                </body>
            </contents-richtext>
            <popup flags="print,nozoom,norotate" open="no" page="0" rect="737.008000,374.656000,941.008000,488.656000"/>
        </caret>
        <highlight color="#FFD100" coords="183.867000,402.332000,220.968000,402.332000,183.867000,387.587000,220.968000,387.587000" creationdate="D:20190221151441+01'00'" date="D:20190221151448+01'00'" flags="print" name="a18c7fb0-0af3-435e-8c32-1af2af3c46ea" opacity="0.399994" page="0" rect="179.930000,387.126000,224.904000,402.793000" subject="Highlight" title="Admin">
            <contents-richtext>
                <body xfa:APIVersion="Acrobat:19.10.0" xfa:spec="2.0.2" xmlns="http://www.w3.org/1999/xhtml" xmlns:xfa="http://www.xfa.org/schema/xfa-data/1.0/">
                    <p dir="ltr">
                        <span dir="ltr" style="font-size:10.5pt;text-align:left;color:#000000;font-weight:normal;font-style:normal">comment2</span>
                    </p>
                </body>
            </contents-richtext>
            <popup flags="print,nozoom,norotate" open="no" page="0" rect="737.008000,288.332000,941.008000,402.332000"/>
        </highlight>
        <caret color="#0000FF" creationdate="D:20190221151452+01'00'" date="D:20190221151452+01'00'" flags="print" fringe="0.828156,0.828156,0.828156,0.828156" name="6bf0226e-a3fb-49bf-bc89-05bb671e1627" page="0" rect="285.877000,372.978000,298.073000,382.916000" subject="Inserted Text" title="Admin">
            <popup flags="print,nozoom,norotate" open="no" page="0" rect="737.008000,268.088000,941.008000,382.088000"/>
        </caret>
        <strikeout IT="StrikeOutTextEdit" color="#0000FF" coords="588.088000,497.406000,644.818000,497.406000,588.088000,477.960000,644.818000,477.960000" creationdate="D:20190221151519+01'00'" date="D:20190221151519+01'00'" flags="print" inreplyto="72f8d1b7-d878-4281-bd33-3a6fb4578673" name="6686b852-3924-4252-af21-c1b10390841f" page="0" rect="582.290000,476.745000,650.616000,498.621000" replyType="group" subject="Cross-Out" title="Admin">
            <popup flags="print,nozoom,norotate" open="no" page="0" rect="737.008000,383.406000,941.008000,497.406000"/>
        </strikeout>
    </annots>
    <f href="p1.pdf"/>
    <ids modified="ABB10FA107DAAA47822FB5D311112349" original="474F087D87E7E544F6DEB9E0A93ADFB2"/>
</xfdf>

{'/Popup': IndirectObject(192, 0), '/M': u"D:20190221151448+01'00'", '/CreationDate': u"D:20190221151441+01'00'", '/NM': u'a18c7fb0-0af3-435e-8c32-1af2af3c46ea', '/F': 4, '/C': [1, 0.81961, 0], '/Rect': [179.93, 387.126, 224.904, 402.793], '/Type': '/Annot', '/T': u'Admin', '/RC': u'<?xml version="1.0"?><body xmlns="http://www.w3.org/1999/xhtml" xmlns:xfa="http://www.xfa.org/schema/xfa-data/1.0/" xfa:APIVersion="Acrobat:19.10.0" xfa:spec="2.0.2" ><p dir="ltr"><span dir="ltr" style="font-size:10.5pt;text-align:left;color:#000000;font-weight:normal;font-style:normal">comment2</span></p></body>', '/P': IndirectObject(5, 0), '/Contents': u'otrasneho', '/QuadPoints': [183.867, 402.332, 220.968, 402.332, 183.867, 387.587, 220.968, 387.587], '/Subj': u'Highlight', '/CA': 0.39999, '/AP': {'/N': IndirectObject(202, 0)}, '/Subtype': '/Highlight'}

{'/Parent': IndirectObject(191, 0), '/Rect': [737.008, 288.332, 941.008, 402.332], '/Type': '/Annot', '/F': 28, '/Open': <PyPDF2.generic.BooleanObject object at 0x02A425D0>, '/Subtype': '/Popup'}

{'/Popup': IndirectObject(194, 0), '/M': u"D:20190221151452+01'00'", '/CreationDate': u"D:20190221151452+01'00'", '/NM': u'6bf0226e-a3fb-49bf-bc89-05bb671e1627', '/F': 4, '/C': [0, 0, 1], '/Subj': u'Inserted Text', '/Rect': [285.877, 372.978, 298.073, 382.916], '/Type': '/Annot', '/P': IndirectObject(5, 0), '/AP': {'/N': IndirectObject(201, 0)}, '/RD': [0.82816, 0.82816, 0.82816, 0.82816], '/T': u'Admin', '/Subtype': '/Caret'}

{'/Parent': IndirectObject(193, 0), '/Rect': [737.008, 268.088, 941.008, 382.088], '/Type': '/Annot', '/F': 28, '/Open': <PyPDF2.generic.BooleanObject object at 0x02A42830>, '/Subtype': '/Popup'}

{'/Popup': IndirectObject(196, 0), '/M': u"D:20190221151519+01'00'", '/CreationDate': u"D:20190221151519+01'00'", '/NM': u'6686b852-3924-4252-af21-c1b10390841f', '/F': 4, '/IRT': IndirectObject(197, 0), '/C': [0, 0, 1], '/Rect': [582.29, 476.745, 650.616, 498.621], '/Type': '/Annot', '/T': u'Admin', '/P': IndirectObject(5, 0), '/QuadPoints': [588.088, 497.406, 644.818, 497.406, 588.088, 477.96, 644.818, 477.96], '/Subj': u'Cross-Out', '/IT': '/StrikeOutTextEdit', '/AP': {'/N': IndirectObject(200, 0)}, '/RT': '/Group', '/Subtype': '/StrikeOut'}

{'/Parent': IndirectObject(195, 0), '/Rect': [737.008, 383.406, 941.008, 497.406], '/Type': '/Annot', '/F': 28, '/Open': <PyPDF2.generic.BooleanObject object at 0x02A42AF0>, '/Subtype': '/Popup'}

{'/Popup': IndirectObject(198, 0), '/M': u"D:20190221151526+01'00'", '/CreationDate': u"D:20190221151519+01'00'", '/NM': u'72f8d1b7-d878-4281-bd33-3a6fb4578673', '/F': 4, '/C': [0, 0, 1], '/Rect': [636.942, 476.891, 652.693, 489.725], '/Type': '/Annot', '/RD': [1.06952, 1.06952, 1.06952, 1.06952], '/T': u'Admin', '/RC': u'<?xml version="1.0"?><body xmlns="http://www.w3.org/1999/xhtml" xmlns:xfa="http://www.xfa.org/schema/xfa-data/1.0/" xfa:APIVersion="Acrobat:19.10.0" xfa:spec="2.0.2" ><p dir="ltr"><span dir="ltr" style="font-size:10.5pt;text-align:left;color:#000000;font-weight:normal;font-style:normal">comment1</span></p></body>', '/P': IndirectObject(5, 0), '/Contents': u' pica', '/Subj': u'Inserted Text', '/IT': '/Replace', '/AP': {'/N': IndirectObject(212, 0)}, '/Subtype': '/Caret'}

{'/Parent': IndirectObject(197, 0), '/Rect': [737.008, 374.656, 941.008, 488.656], '/Type': '/Annot', '/F': 28, '/Open': <PyPDF2.generic.BooleanObject object at 0x02A42AB0>, '/Subtype': '/Popup'}

与上述xfdf文件中相同文件的输出如下所示：

<?xml version="1.0" ?>
<xfdf xml:space="preserve" xmlns="http://ns.adobe.com/xfdf/">
    <annots>
        <caret IT="Replace" color="#0000FF" creationdate="D:20190221151519+01'00'" date="D:20190221151526+01'00'" flags="print" fringe="1.069520,1.069520,1.069520,1.069520" name="72f8d1b7-d878-4281-bd33-3a6fb4578673" page="0" rect="636.942000,476.891000,652.693000,489.725000" subject="Inserted Text" title="Admin">
            <contents-richtext>
                <body xfa:APIVersion="Acrobat:19.10.0" xfa:spec="2.0.2" xmlns="http://www.w3.org/1999/xhtml" xmlns:xfa="http://www.xfa.org/schema/xfa-data/1.0/">
                    <p dir="ltr">
                        <span dir="ltr" style="font-size:10.5pt;text-align:left;color:#000000;font-weight:normal;font-style:normal"> comment1</span>
                    </p>
                </body>
            </contents-richtext>
            <popup flags="print,nozoom,norotate" open="no" page="0" rect="737.008000,374.656000,941.008000,488.656000"/>
        </caret>
        <highlight color="#FFD100" coords="183.867000,402.332000,220.968000,402.332000,183.867000,387.587000,220.968000,387.587000" creationdate="D:20190221151441+01'00'" date="D:20190221151448+01'00'" flags="print" name="a18c7fb0-0af3-435e-8c32-1af2af3c46ea" opacity="0.399994" page="0" rect="179.930000,387.126000,224.904000,402.793000" subject="Highlight" title="Admin">
            <contents-richtext>
                <body xfa:APIVersion="Acrobat:19.10.0" xfa:spec="2.0.2" xmlns="http://www.w3.org/1999/xhtml" xmlns:xfa="http://www.xfa.org/schema/xfa-data/1.0/">
                    <p dir="ltr">
                        <span dir="ltr" style="font-size:10.5pt;text-align:left;color:#000000;font-weight:normal;font-style:normal">comment2</span>
                    </p>
                </body>
            </contents-richtext>
            <popup flags="print,nozoom,norotate" open="no" page="0" rect="737.008000,288.332000,941.008000,402.332000"/>
        </highlight>
        <caret color="#0000FF" creationdate="D:20190221151452+01'00'" date="D:20190221151452+01'00'" flags="print" fringe="0.828156,0.828156,0.828156,0.828156" name="6bf0226e-a3fb-49bf-bc89-05bb671e1627" page="0" rect="285.877000,372.978000,298.073000,382.916000" subject="Inserted Text" title="Admin">
            <popup flags="print,nozoom,norotate" open="no" page="0" rect="737.008000,268.088000,941.008000,382.088000"/>
        </caret>
        <strikeout IT="StrikeOutTextEdit" color="#0000FF" coords="588.088000,497.406000,644.818000,497.406000,588.088000,477.960000,644.818000,477.960000" creationdate="D:20190221151519+01'00'" date="D:20190221151519+01'00'" flags="print" inreplyto="72f8d1b7-d878-4281-bd33-3a6fb4578673" name="6686b852-3924-4252-af21-c1b10390841f" page="0" rect="582.290000,476.745000,650.616000,498.621000" replyType="group" subject="Cross-Out" title="Admin">
            <popup flags="print,nozoom,norotate" open="no" page="0" rect="737.008000,383.406000,941.008000,497.406000"/>
        </strikeout>
    </annots>
    <f href="p1.pdf"/>
    <ids modified="ABB10FA107DAAA47822FB5D311112349" original="474F087D87E7E544F6DEB9E0A93ADFB2"/>
</xfdf>

{'/Popup': IndirectObject(192, 0), '/M': u"D:20190221151448+01'00'", '/CreationDate': u"D:20190221151441+01'00'", '/NM': u'a18c7fb0-0af3-435e-8c32-1af2af3c46ea', '/F': 4, '/C': [1, 0.81961, 0], '/Rect': [179.93, 387.126, 224.904, 402.793], '/Type': '/Annot', '/T': u'Admin', '/RC': u'<?xml version="1.0"?><body xmlns="http://www.w3.org/1999/xhtml" xmlns:xfa="http://www.xfa.org/schema/xfa-data/1.0/" xfa:APIVersion="Acrobat:19.10.0" xfa:spec="2.0.2" ><p dir="ltr"><span dir="ltr" style="font-size:10.5pt;text-align:left;color:#000000;font-weight:normal;font-style:normal">comment2</span></p></body>', '/P': IndirectObject(5, 0), '/Contents': u'otrasneho', '/QuadPoints': [183.867, 402.332, 220.968, 402.332, 183.867, 387.587, 220.968, 387.587], '/Subj': u'Highlight', '/CA': 0.39999, '/AP': {'/N': IndirectObject(202, 0)}, '/Subtype': '/Highlight'}

{'/Parent': IndirectObject(191, 0), '/Rect': [737.008, 288.332, 941.008, 402.332], '/Type': '/Annot', '/F': 28, '/Open': <PyPDF2.generic.BooleanObject object at 0x02A425D0>, '/Subtype': '/Popup'}

{'/Popup': IndirectObject(194, 0), '/M': u"D:20190221151452+01'00'", '/CreationDate': u"D:20190221151452+01'00'", '/NM': u'6bf0226e-a3fb-49bf-bc89-05bb671e1627', '/F': 4, '/C': [0, 0, 1], '/Subj': u'Inserted Text', '/Rect': [285.877, 372.978, 298.073, 382.916], '/Type': '/Annot', '/P': IndirectObject(5, 0), '/AP': {'/N': IndirectObject(201, 0)}, '/RD': [0.82816, 0.82816, 0.82816, 0.82816], '/T': u'Admin', '/Subtype': '/Caret'}

{'/Parent': IndirectObject(193, 0), '/Rect': [737.008, 268.088, 941.008, 382.088], '/Type': '/Annot', '/F': 28, '/Open': <PyPDF2.generic.BooleanObject object at 0x02A42830>, '/Subtype': '/Popup'}

{'/Popup': IndirectObject(196, 0), '/M': u"D:20190221151519+01'00'", '/CreationDate': u"D:20190221151519+01'00'", '/NM': u'6686b852-3924-4252-af21-c1b10390841f', '/F': 4, '/IRT': IndirectObject(197, 0), '/C': [0, 0, 1], '/Rect': [582.29, 476.745, 650.616, 498.621], '/Type': '/Annot', '/T': u'Admin', '/P': IndirectObject(5, 0), '/QuadPoints': [588.088, 497.406, 644.818, 497.406, 588.088, 477.96, 644.818, 477.96], '/Subj': u'Cross-Out', '/IT': '/StrikeOutTextEdit', '/AP': {'/N': IndirectObject(200, 0)}, '/RT': '/Group', '/Subtype': '/StrikeOut'}

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