The Apache Software Foundation
The Apache Software Foundation Incubator

JBig2 ImageIO Plugin Codebase IP Clearance

JBig2 ImageIO Plugin Codebase Intellectual Property (IP) Clearance Status


The Java ImageIO plugin for JBIG2 enables access to images encoded using the JBIG2 image compression standard.

The contributed code is attached to issue PDFBOX-3906 with the following description:

Levigo solutions GmbH donates the Java ImageIO-Plugin for the JBIG2 to the PDFBox project. The Plugin is currently hosted at and has already been prepared for integration. The steps completed so far are:
  • IP vetting for contributions by non-levigo developers
  • Merging/application of all pending pull requests
  • Update of the project structure in anticipation of the new home:
    • package names
    • license headers
    • license files
    • release notes
    • Maven project information

Project info

  • Which PMC will be responsible for the code: Apache PDFBox
  • Into which existing project/module: jbig2
  • Officer or member managing donation: Andreas Lehmkühler

Completed tasks are shown by the completion date (YYYY-MM-dd).

Identify the codebase

date item
NA If applicable, make sure that any associated name does not already exist and is not already trademarked for an existing software product.

MD5 or SHA1 sum for donated software: 0e07111b4bf7f5a51bf0fdd903f02f082ea3bf65 (sha1sum (GNU coreutils) 8.26).

date item
2017-08-25 Check and make sure that the papers that transfer rights to the ASF been received. It is only necessary to transfer rights for the package, the core code, and any new code produced by the project.
2017-09-01 Check and make sure that the files that have been donated have been updated to reflect the new ASF copyright.

Identify name recorded for software grant: levigo Java ImageIO Plugin for JBIG2 (levigo-holding-imageio-plugin.pdf)

Verify distribution rights

Corporations and individuals holding existing distribution rights:

  • levigo solutions GmbH (CCLA levigo-solutions.pdf)
  • Jörg Henne (ICLA joerg-henne.pdf)
  • Matthäus Mayer (ICAL matthaeus-mayer.pdf)
  • Sebastian Holder (ICLA sebastian-holder.pdf)
  • Carolin Köhler (ICLA carolin-koehler.pdf)
date item
2017-09-13 Check that all active committers have a signed CLA on record.
2017-08-19 Remind active committers that they are responsible for ensuring that a Corporate CLA is recorded if such is required to authorize their contributions under their individual CLA.
2017-09-24 Check and make sure that for all items included with the distribution that is not under the Apache license, we have the right to combine with Apache-licensed code and redistribute.
2017-09-01 Check and make sure that all items depended upon by the project is covered by one or more of the following approved licenses: Apache, BSD, Artistic, MIT/X, MIT/W3C, MPL 1.1, or something with essentially the same terms.

Generally, the result of checking off these items will be a Software Grant, CLA, and Corporate CLA for ASF licensed code, which must have no dependencies upon items whose licenses that are incompatible with the Apache License.

Organizational acceptance of responsibility for the project