Provides text extraction, metadata extraction, mime-type detection, text-encoding detection and language detection. All via a native Java bridge with the Apache Tika content-analysis toolkit. Bundles Tika 1.5.

Depends on node-java, which itself requires the JDK and Python 2 (not 3) to compile.

Requires JDK 7. Run node version to check the version that node-java is using. If the wrong version is reported even if you installed JDK 1.7, make sure JAVA_HOME is set to the correct path then delete node_modules/java and rerun npm install.

var tika = require('tika');

Extract both text and metadata from a file. Content type is optional but would help Tika in some cases.

tika.extract('test/data/file.pdf', function(err, text, meta) {
	assert.equal(text.trim(), 'Just some text.');
	assert.deepEqual(meta.producer, 'LibreOffice 4.1');
});

Extract text from a file.

tika.text('test/data/file.pdf', function(err, text) {
	assert.equal(text.trim(), 'Just some text.');
});

Extract metadata from a file. Returns an object with names as keys.

tika.meta('test/data/file.pdf', function(err, meta) {
	assert.deepEqual(meta.producer, 'LibreOffice 4.1');
});

Detect the content-type of a file.

tika.type('test/data/file.pdf', function(err, contentType) {
	assert.equal(contentType, 'application/pdf');
});

The withCharset parameter defaults to false. If set to true, then the charset will be appended to the mime-type.

tika.type('test/data/file.txt', true, function(err, contentType) {
	assert.equal(contentType, 'text/plain; charset=ISO-8859-1');
});

Detect the character set (text encoding) of a file.

tika.charset('test/data/file.txt', true, function(err, charset) {
	assert.equal(charset, 'ISO-8859-1');
});

Detect the language a given string is written in.

tika.language('This is just some text in English.', function(err, language, reasonablyCertain) {
	assert.equal(language, 'en');
});

Developed by Matthew Caruana Galizia. Please feel free to submit an issue or pull request.

Copyright (c) 2013 Matthew Caruana Galizia. Licensed under an MIT-style license.

Apache Tika JAR distributed under the Apache License, Version 2.0.