php 如何从PDF文档中提取文本？
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How to extract text from the PDF document?
提问by Sfisioza
How to extract text from the PDF document using PHP?
如何使用 PHP从 PDF 文档中提取文本？
(I can't use other tools, I don't have root access)
（我不能使用其他工具，我没有root权限）
I've found some functions working for plain text, but they don't handle well Unicode characters:
我发现一些函数适用于纯文本，但它们不能很好地处理 Unicode 字符：
http://www.hashbangcode.com/blog/zend-lucene-and-pdf-documents-part-2-pdf-data-extraction-437.html
http://www.hashbangcode.com/blog/zend-lucene-and-pdf-documents-part-2-pdf-data-extraction-437.html
采纳答案by CONvid19
Download the class.pdf2text.php@ https://pastebin.com/dvwySU1aor http://www.phpclasses.org/browse/file/31030.html(Registration required)
下载class.pdf2text.php@ https://pastebin.com/dvwySU1a或http://www.phpclasses.org/browse/file/31030.html（需要注册）
Code:
代码：
include('class.pdf2text.php');
$a = new PDF2Text();
$a->setFilename('filename.pdf');
$a->decodePDF();
echo $a->output();
class.pdf2text.phpProject Homepdf2textclassdoesn't work with all the PDF's I've tested, If it doesn't work for you, try PDF Parser
class.pdf2text.php项目首页pdf2textclass不适用于我测试过的所有 PDF，如果它不适合您，请尝试PDF Parser
回答by Sebastien Malot
I know that this topic is quite old, but this need is still alive. I read many documents, forum and script and build a new advanced one which supports compressed and uncompressed pdf :
我知道这个话题已经很老了，但这种需求仍然存在。我阅读了许多文档、论坛和脚本，并构建了一个支持压缩和未压缩 pdf 的新高级文档：
https://gist.github.com/smalot/6183152
https://gist.github.com/smalot/6183152
Hope it helps everone
希望对大家有帮助
