Apache FOP
Original author(s)James Tauber
Developer(s)Apache Software Foundation
Stable release
2.8 / November 9, 2022; 41 days ago (2022-11-09)[1]
Written inJava
Operating systemCross-platform
LicenseApache License 2.0

Formatting Objects Processor (FOP, also known as Apache FOP) is a Java application that converts XSL Formatting Objects (XSL-FO) files to PDF or other printable formats. FOP was originally developed by James Tauber who donated it to the Apache Software Foundation in 1999. It is part of the Apache XML Graphics project.

FOP is open source software, and is distributed under the Apache License 2.0.

Current status

The latest version of Apache FOP is 2.8.[2] This is the eleventh stable release.

Major limitations

Most important elements added in XSL-FO 1.1 (flow maps, table markers, indexes. etc.) are not available [3]

In addition, older XSL-FO 1.0 features are still not fully supported including automatic table layout, floats and more.

Input support

Apache FOP supports embedding a number of image formats in the XSL-FO (through the <fo:external-graphic> element). These include:

Apache FOP implements the <fo:float> element with some limitations.[4] In versions prior to 2.0, external graphics objects were limited to being drawn inline or in a block with no wrapped text.

Output formats

Apache FOP supports the following output formats:

In progress:

See also


  1. ^ "Apache(tm) FOP News". Retrieved 2022-12-01.
  2. ^ "Apache FOP Status".
  3. ^ "Apache FOP XSL-FO Compliance".
  4. ^ "Apache FOP 2.0 release notes". Retrieved 2015-12-18.
  5. ^ "FOP 0.95 - PDF/X (ISO 15930)". Retrieved 2011-05-22.