The Apache Software License, Version 1.1


The 1.1 version of the Apache License was approved by the ASF in 2000. The primary change from the 1.0 license is in the 'advertising clause' (section 3 of the 1.0 license); derived products are no longer required to include attribution in their advertising materials, only in their documentation.

Individual packages licensed under the 1.1 version may have used different wording due to varying requirements for attribution or mark identification, but the binding terms were all the same.


This is the original Apache License which applies only to older versions of Apache packages (such as version 1.2 of the Web server).


The ASF desires that all contributors of ideas, code, or documentation to any Apache projects complete, sign, and submit via email an Individual Contributor License Agreement (ICLA).

The purpose of this agreement is to clearly define the terms under which intellectual property has been contributed to the ASF and thereby allow us to defend the project should there be a legal dispute regarding the software at some future time. A signed ICLA is required to be on file before an individual is given commit rights to any ASF project.

For a corporation that has assigned employees to work on an Apache project, a Corporate CLA (CCLA) is available for contributing intellectual property via the corporation, that may have been assigned as part of an employment agreement.

Note that a Corporate CLA does not remove the need for every developer to sign their own ICLA as an individual, which covers both contributions which are owned and those that are not owned by the corporation signing the CCLA.

The CCLA legally binds the corporation, so it must be signed by a person with authority to enter into legal contracts on behalf of the corporation.

The ICLA is not tied to any employer you may have, so it is recommended to use one's personal email address in the contact details, rather than an @work address.

Your Full name will be published unless you provide an alternative Public name. For example if your full name is Andrew Bernard Charles Dickens, but you wish to be known as Andrew Dickens, please enter the latter as your Public name.

The email address and other contact details are not published.

If you are submitting an ICLA in response to an invitation from a PMC, be sure to identify the project via the form field "notify project". Also, choose a preferred id that is not already in use. Apache ids must start with an alphabetic character and contain at least two additional alphanumeric characters (no special characters). You can check for ids in use here.


When an individual or corporation decides to donate a body of existing software or documentation to one of the Apache projects, they need to execute a formal Software Grant Agreement (SGA) with the ASF. Typically, this is done after negotiating approval with the ASF Incubator or one of the PMCs, since the ASF will not accept software unless there is a viable community available to support a collaborative project.


Documents may be submitted by email and signed by hand or by electronic signature. Postal mail hard copy and fax are no longer supported.

When submitting by email, please fill the form with a pdf viewer, then print, sign, scan all pages into a single pdf file, and attach the pdf file to an email to

If possible, send the attachment from the email address in the document. Please send only one document per email.

If you prefer to sign electronically, please fill the form, save it locally (e.g. icla.pdf), and sign the file by preparing a detached PGP signature. For example,

gpg --armor --detach-sign icla.pdf

The above will create a file icla.pdf.asc. Send both the file (icla.pdf) and signature (icla.pdf.asc) as attachments in the same email to Please send only one document (file plus signature) per email. Please do not submit your public key to Apache. Instead, please upload your public key to

The files should be named icla.pdf and icla.pdf.asc for individual agreements; ccla.pdf and ccla.pdf.asc for corporate agreements; software-grant.pdf and software-grant.pdf.asc for grants.

Please note that typing your name in the field at the bottom of the document is not signing, regardless of the font that is used. Signing is either writing your signature by hand on a printed copy of the document, or digitally signing via gpg. Unsigned documents will not be accepted.

From A signature is a handwritten (and often stylized) depiction of someone's name or nickname, on documents as a proof of identity and intent.


For export restriction information, please consult our ASF Export Classifications page.


For ASF trademark and logo usage information, please consult our ASF Trademark Use Policy page.


For answers to frequently asked licensing questions, please consult our Licensing Frequently Asked Questions page.