This paper presents ISO 22388:2023 "Guidelines for securing physical documents," an international standard developed to enhance the security of physical documents, such as vouchers, identity cards, and certificates. The standard specifies entities, including government agencies, document issuers, and solution providers, using a structured approach to assess fraud risks, define document classes based on exposure levels, and establish the minimum recommended security features. By promoting a risk-based methodology, ISO 22388 supports consistent decision-making in document design and issuance, helping to prevent counterfeiting, unauthorized alterations, and theft. In addition, these guidelines encourage interoperability and trust across jurisdictions by offering a common framework for evaluating threats, vulnerabilities, and asset values. This study investigated how this standard can be effectively applied to diverse operational contexts, including public administration, financial services, and identity management. It also analyzed how ISO 22388 complements existing security frameworks and regulatory requirements, and how it may evolve in response to emerging threats and stakeholder feedback.

Since the late 2010s, office and home lighting have shifted from incandescent and fluorescent bulbs to LEDs. The color evaluation lighting used in the graphic arts industry has also shifted from fluorescent to LED; however, both national and international standards have been developed for fluorescent lamps and do not support LEDs. To solve this problem, The Japanese Society of Printing Science and Technology published the "Guidelines for Viewing Conditions for Printed Materials Using LED Lightings for Color Evaluation" in 2021. In response, several types of LEDs that comply with these guidelines have been released and are now widely used. International standard ISO 3664:2009 is based on fluorescent lamps. Therefore, to maintain consistency with the revised standard, Japan has proposed new viewing conditions that are compliant with LEDs. After several years of discussion, the proposal was approved, and the standard was published as ISO 3664:2025 in July 2025. The new viewing conditions are unique in that they do not contain ultraviolet light, which is consistent with the characteristics of LEDs. All Japanese-made color evaluation LEDs now comply with the ISO standard.

The Japan Color Certification System is based on ISO standards and certifies printing in accordance with “Japan Color 2011,” the standard reference for printing colors in Japanese offset sheet-fed printing. The reference consists of five types of certification: “offset process control,” color-matching accuracy,” “proofing process management,” “proofing system,” and “digital printing process control.” This article presents an overview of the Japan Color Certification System and the differences between the old and revised certification criteria for Proofing Process Management Certification and Proofing System Certification, which were updated in March.

In the printing industry, Idealliance G7^® is a widely adopted international standard for ensuring color reproducibility and consistency in four-color process printing. This article explains the new “G7+™” certification system, recently announced by PRINTING United Alliance, as the evolution of G7. G7+ is an expanded specification that augments classic G7^® with new logic, algorithms, and features, but with a similar overall appearance.