blocks|key|4466724|text|你需要安装PyPDF2模块才能在Python3.4中处理PDF。PyPDF2无法提取图像、图表或其他媒体，但它可以提取文本并将其作为Python字符串返回。要安装它，请从命令行运行pip+install+PyPDF2。此模块名称区分大小写，因此请确保键入'y‘为小写，所有其他字符均为大写。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4466725|>>>+import+PyPDF2
>>>+pdfFileObj+=+open('my_file.pdf','rb')+++++#'rb'+for+read+binary+mode
>>>+pdfReader+=+PyPDF2.PdfFileReader(pdfFileObj)
>>>+pdfReader.numPages
56
>>>+pageObj+=+pdfReader.getPage(9)++++++++++#'9'+is+the+page+number
>>>+pageObj.extractText()|code-block|syntax|javascript|4466726|最后一条语句返回'my_file.pdf‘文档第9页中可用的所有文本。|4466727|entityMap^0|2I|I|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|R|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|S|8|@]|D|@]|E|$]]|$1|M|3|-4|5|6|7|T|8|@]|D|@]|E|$]]]|N|$]]

You need to install PyPDF2 module to be able to work with PDFs in Python 3.4. PyPDF2 cannot extract images, charts or other media but it can extract text and return it as a Python string. To install it run <code>pip install PyPDF2</code> from the command line. This module name is case-sensitive so make sure to type 'y' in lowercase and all other characters as uppercase.

<pre><code>&gt;&gt;&gt; import PyPDF2
&gt;&gt;&gt; pdfFileObj = open('my_file.pdf','rb') #'rb' for read binary mode
&gt;&gt;&gt; pdfReader = PyPDF2.PdfFileReader(pdfFileObj)
&gt;&gt;&gt; pdfReader.numPages
56
&gt;&gt;&gt; pageObj = pdfReader.getPage(9) #'9' is the page number
&gt;&gt;&gt; pageObj.extractText()
</code></pre>

last statement returns all the text that is available in page-9 of 'my_file.pdf' document.

blocks|key|4466795|text|其他地方也推荐使用pdfminer.six+(+https://github.com/pdfminer/pdfminer.six+)来支持Python3，但我个人不能保证，因为它在安装MacOS时失败了。(这方面有一个悬而未决的问题，而且似乎是最近出现的问题，因此可能会有一个快速的解决方案。)|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|4466796|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/pdfminer/pdfminer.six^0|O|14|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

pdfminer.six ( <a href="https://github.com/pdfminer/pdfminer.six" rel="noreferrer">https://github.com/pdfminer/pdfminer.six</a> ) has also been recommended elsewhere and is intended to support Python 3. I can't personally vouch for it though, since it failed during installation MacOS. (There's an open issue for that and it seems to be a recent problem, so there might be a quick fix.)

blocks|key|4466480|text|slate3k很适合于提取文本。我使用Python3.7.3测试了几个PDF文件，例如，它比PyPDF2准确得多。它是slate的一个分支，是PDFMiner的包装器。下面是我使用的代码：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4466481|import+slate3k+as+slate

with+open('Sample.pdf',+'rb')+as+f:
++++doc+=+slate.PDF(f)

doc
#prints+the+full+document+as+a+list+of+strings
#each+element+of+the+list+is+a+page+in+the+document

doc[0]
#prints+the+first+page+of+the+document|code-block|syntax|javascript|4466482|这条评论归功于GitHub：https://github.com/mstamy2/PyPDF2/issues/437#issuecomment-400491342|offset|length|4466483|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/mstamy2/PyPDF2/issues/437#issuecomment-400491342^0|0|0|E|1V|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|U|8|@]|9|@$I|V|J|W|1|X]]|A|$]]|$1|K|3|-4|5|6|7|Y|8|@]|9|@]|A|$]]]|L|$M|$5|N|O|P|A|$Q|R]]]]

slate3k is good for extracting text. I've tested it with a few PDF files using Python 3.7.3, and it's a lot more accurate than PyPDF2, for instance. It's a fork of slate, which is a wrapper for PDFMiner. Here's the code I am using: 

<pre><code>import slate3k as slate

with open('Sample.pdf', 'rb') as f:
 doc = slate.PDF(f)

doc
#prints the full document as a list of strings
#each element of the list is a page in the document

doc[0]
#prints the first page of the document
</code></pre>

Credit to this comment on GitHub:
<a href="https://github.com/mstamy2/PyPDF2/issues/437#issuecomment-400491342" rel="nofollow noreferrer">https://github.com/mstamy2/PyPDF2/issues/437#issuecomment-400491342</a>

blocks|key|4466832|text|import+pdfreader
pdfFileObj+=+open('/tmp/Test-test-test.pdf','rb')
viewer+=+SimplePDFViewer(pdfFileObject)
viewer.navigate(1)
viewer.render()
viewer.canvas.strings|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|4466833|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>import pdfreader
pdfFileObj = open('/tmp/Test-test-test.pdf','rb')
viewer = SimplePDFViewer(pdfFileObject)
viewer.navigate(1)
viewer.render()
viewer.canvas.strings
</code></pre>

I am using Python 3.4 and need to extract all the text from a PDF and then use it for text processing.

All the answers I have seen suggest options for Python 2.7.

I need something in Python 3.4.

Bonson

Best tool for text extraction from PDF in Python 3.4

我使用的是Python 3.4，需要从PDF中提取所有文本，然后使用它进行文本处理。我看到的所有答案都建议使用Python2.7。我需要一些Python 3.4的东西。邦森

问Python 3.4中从PDF中提取文本的最佳工具
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