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pufferfish
Asked: 2009-07-02 05:42:53 +0800 CST

Indexing PDF files on Ubuntu

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I'm looking for a solution in Ubuntu that indexes PDF (and ps?) files for searching later.

The criteria would be:

  1. Compatibility: Often extracting text varies, depending on what software was used to create the PDF. Some PDFs can also be "locked", which I guess one should respect.
  2. Search functionality: wildcards, regex's, "fuzzy" matching.
  3. Speed of search

In my case I want to index a folder of academic journal articles, hence the requirement that it works consistently regardless of what software created the PDF. I'm already using a reference manager so would rather not replace that.

For example: A good front-end to Beagle, and a plugin that allows it to index PDFs would be perfect.

ubuntu pdf indexing

3 Answers

  1. Best Answer

    Tracker does the same thing as Beagle and Strigi, but contrary to Beagle, it's written in pure C (Beagle is a Mono application). Allegedly, it is a lot faster than Beagle, though I haven't done the math myself.

    I can't find you a link to Tracker, but I'm sure it's in the default Ubuntu repositories.

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  2. Lucene does fulltext indexing of PDF, HTML, Microsoft Word, and OpenDocument. It's just a library, but there are several applications/CMS using it, or you could use it as a base for your own solution.

    It is free software (Apache license).

    Edit:

    If you are looking for something with a frontend, you might consider Beagle or Strigi:

    Beagle

    Strigi

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  3. I use google desktop for searching on linux. Not free, but it's the best i've found.

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