User guides, developer documentation and publishing tips for all of the Public Knowledge Project’s software

Open Journal Systems 3

Our flagship software for open access journal publishing, used by more than 10,000 journals worldwide.

Learning OJS 3

A visual, step-by-step guide to managing a journal with Open Journal Systems. View Now



Available in Finnish and Arabic.

Administrator’s Guide

A guide for system administrators of PKP applications.


Getting Started

An easy-to-follow checklist of all the steps you’ll need to take to launch a successful journal. View Now

GDPR Guide

This guide provides advice for users of PKP applications on how to approach the EU General Data Protection Regulation (GDPR). View Now

PKP School

PKP School is an online, open, self-paced collection of courses designed to help improve the quality of scholarly publishing around the world.

Crossref and DOIs

Learn how you can take advantage of PKP’s partnership with Crossref to help publishers and journals take advantage of Crossref’s research indexing service. View Now

Looking for OJS 2?

Find all of our documentation for earlier versions of Open Journal Systems. View Now

PKP Theming Guide

An introduction to building custom themes for Open Journal Systems 3.0+ and OMP 1.2+. It is written for web developers who wish to tailor the look and feel of their journal or press with custom PHP, HTML and CSS code. View Now


Available in Português Brasileiro.

REST API Usage Guide

Helpful hints and complete technical references for using OJS 3’s REST API. View Now

Open Journal Systems 2

Help guides for older versions of our journal management software. We recommend you upgrade to OJS 3.

Learning OJS 2.x

A visual, step-by-step guide to managing a journal with Open Journal Systems 2.x. View Now

PKP School

This series of video courses is for journal editors who need to learn how to perform all of the basic editorial tasks in OJS 2 quickly. View Now

Crossref and DOIs

Learn how you can take advantage of PKP’s partnership with Crossref to help publishers and journals take advantage of Crossref’s research indexing service. View Now

Importing and Exporting Data (OJS 2)

An OJS 2 guide on how to import and export user information, published article data, and more. View Now

Using Paypal (OJS 2)

How to configure OJS 2 to use Paypal. View Now


Available in Arabic.

OJS 2.x Technical Reference

An extensive document regarding versions 2.x of the OJS platform. View Now

Open Monograph Press

Usage guides and documentation for our monograph publishing software.

OMP 1.0 Userguide

A step-by-step guide to managing a press with the legacy version of Open Monograph Press. View now

Learning OMP 3 is currently in development. Coming soon.

Administrator’s Guide

A guide for system administrators of PKP applications.


GDPR Guide

This guide provides advice for users of PKP applications on how to approach the EU General Data Protection Regulation (GDPR). View Now

API Documentation

This resource contains documentation generated automatically from the OMP source code. View Now

PKP Theming Guide

An introduction to building custom themes for Open Journal Systems 3.0+ and OMP 1.2+. It is written for web developers who wish to tailor the look and feel of their journal or press with custom PHP, HTML and CSS code. View Now


Available in Português Brasileiro.

REST API Usage Guide

Helpful hints and technical references for using OMP’s REST API. View Now

Open Conference Systems

Usage guides and documentation for our scholarly conference software.

Learn More About OCS

Open Conference Systems (OCS) is a free Web publishing tool that will create a complete Web presence for your scholarly conference. Learn more about OCS.

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