What is Apache Tika Server?

Apache Tika Server is a server edition of Apache Tika.

Apache Tika is a content detection and analysis framework. It allows users to easy text-extraction for thousand different file types (such as PPT, XLS, and PDF) in the single interface. Tika useful for search engine indexing, content analysis, translation, and much more.

Tika is a project of the Apache Software Foundation and was formely a subproject of Apache Lucene.

wikipedia.org/wiki/Apache_Tika

How to use this image

Run Tika Server

$ docker run -d -p 9998:9998 --name some-tika kujira/tika

...via docker-compose

Example docker-compose.yml for kujira/tika:

version: '3.1'

services:
    tika:
        image: kujira/tika
        restart: always
        ports:
          - 9998:9998

Where to Store Data

Tika does not use data store.

Port Mapping

Tika exposes 9998 port in the container. Just add -p 9998:9998 to the docker run arguments and then access either http://localhost:9998 or http://host-ip:9998 in a browser.

Environment Variables

When you start the kujira/tika image, you can adjust the configuration of the instance by passing one or more environment variables on the docker run command line.

TIKA_TEXT_CSV_CONFIDENCE

Set a fraction value to determine text file is csv or not in. Default is 0.5.

TIKA_HTML_EXTRACT_SCRIPTS

Set true to enable HTML script extraction. Default is false.

TIKA_OFFICE_EXTRACT_MACROS

Set true to enable VBA macro extraction. Default is false.

TIKA_OFFICE_INCLUDE_DELETED_CONTENT

Set true to enable deleted content extraction. Default is false.

TIKA_OFFICE_INCLUDE_MOVED_CONTENT

Set true to enable moved content extraction. Default is false.

TIKA_OFFICE_INCLUDE_SHAPE_CONTENT

Set true to enable moved content extraction. Default is false.

TIKA_OFFICE_INCLUDE_HEADER_FOOTER

Set false to disable header and footer extraction. Default is true.

TIKA_OFFICE_INCLUDE_MISSING_ROWS

Set true to enable missing rows extraction. Default is false.

TIKA_OFFICE_INCLUDE_SLIDE_NOTES

Set false to disable slide note extraction. Default is true.

TIKA_OFFICE_INCLUDE_SLIDE_MASTER

Set false to disable slide master extraction. Default is true.

TIKA_OFFICE_INCLUDE_PHONETIC

Set false to disable concatenate phonetic(aka. furigana) extraction. Default is true. When true, 山田太郎ヤマダタロウ will be extracted to 山田太郎ヤマダタロウ.

TIKA_OFFICE_USE_SAX_EXTRACTOR

Set true to enable SAX docx and pptx extraction. Default is false.

TIKA_OFFICE_DATE_OVERRIDE_FORMAT

Sets the format of date string. Default is yyyy-mm-dd. You can find custom date format here.

TIKA_TESSERACT_OCR_LANGUAGE

Set Tesseract OCR language model name. Default is eng. You can join several model names with + character, like this: eng+deu+fra

Supported model names

• deu (German)
• eng (English)
• fra (French)
• ita (Itarian)
• jpn (Japanese)
• jpn_vert (Japanese Vertical)
• spa (Spanish)

TIKA_TESSERACT_OCR_TIMEOUT

Set the timeout of tesseract ocr execution. Default is 120.

TIKA_TESSERACT_OCR_AUTO_ROTATE

Set true to automatic rotate image if needs. Default is false.

TIKA_PDF_INCLUDE_BOOKMARK

Set true to enable bookmark extraction. Default is false.

TIKA_PDF_INCLUDE_ANNOTATION

Set true to enable annotation extraction. Default is false.

TIKA_PDF_OCR_STRATEGY

Set an OCR stragegy string. Default is no_ocr.

OCR strategy values

• no_ocr (default)
• ocr_only
• ocr_and_text
• auto