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如何在ruby上获取现有pdf的总页数？

[英]How to get the total number of pages of the existing pdf in ruby on rails?

原文 2012-02-14 12:14:48 1 1 ruby-on-rails/ ruby

如何获取rails中现有pdf的总页数 ？

1 个解决方案

You can use pdf-reader (also available as a ruby gem). 您可以使用pdf-reader （也可用作ruby gem）。 Usage is as simple as 用法很简单

reader = PDF::Reader.new("somefile.pdf")
puts reader.page_count

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