Canberra's Duplicate Image Problem: How the Capital Stacks Up Against Cities Tackling the Same Digital Mess

The ACT Government's digital asset management unit quietly flagged the problem in late 2025: thousands of duplicate images clogging shared drives across directorates, slowing down publishing workflows and costing money in storage and staff time. Canberra is not alone in this, but how the capital is responding puts it somewhere in the middle of the pack globally — ahead of some comparable cities, behind others.

Duplicate image replacement — the process of identifying, consolidating and substituting redundant visual files across government digital infrastructure — has become a live operational headache for public sector bodies worldwide, driven by the explosion in content management systems, the proliferation of agency microsites and, more recently, the rapid uptake of AI-assisted publishing tools. The Australian government's own warning this week about privacy risks from AI adoption in professional settings has sharpened attention on what data, including image metadata, departments are actually storing and how carefully they are managing it.

What Canberra Is Actually Doing

The ACT Government's Chief Digital Officer unit, based in Canberra's City Hill precinct, has been running a consolidation program since January 2026 under the broader Digital Canberra strategy. The program covers shared repositories used by Transport Canberra, Access Canberra and the ACT Health directorate, among others. The University of Canberra's Centre for Creative and Cultural Research has also been involved in advisory discussions, given its work on digital archiving standards.

The practical problem is familiar to anyone who has worked in a large organisation: a photograph of Northbourne Avenue taken for one campaign ends up saved under six different filenames across four different teams, each version slightly cropped or recoloured. Multiply that across a decade of website refreshes, light rail updates and public health campaigns, and the storage footprint becomes genuinely significant. ACT Government's digital holdings span multiple data centres, including infrastructure hosted through the whole-of-government arrangement with the Australian Signals Directorate's cloud framework.

The ACT's approach centres on hash-matching software to flag exact and near-duplicate files, followed by a manual review process before any file is retired. It is methodical, if slow. Staff at the Callam Offices in Woden, where several directorates are co-located, describe a workflow that is more labour-intensive than automated.

How Other Cities Are Handling It

Amsterdam's municipal government completed a similar audit of its digital asset library in 2024, retiring more than 340,000 duplicate files and cutting cloud storage costs by roughly 18 percent according to a report published by the City of Amsterdam's IT department. Helsinki went further, deploying an open-source deduplication pipeline integrated directly into its content management system, meaning duplicates are now caught at upload rather than in retrospective audits.

Wellington, New Zealand — a reasonable comparator given its size and public-sector-heavy workforce — completed a cross-agency image rationalisation in mid-2025 under its Government Chief Digital Officer program, consolidating assets across 14 agencies. Wellington's model included a shared taxonomy developed with input from Te Papa Tongarewa's digital archiving team, giving it a cultural asset dimension Canberra's program currently lacks.

Singapore's Government Technology Agency has gone furthest, building duplicate detection into its whole-of-government content platform so that no duplicate image can be published without a justification flag being raised. That model requires upfront system investment that the ACT's comparatively smaller budget envelope makes difficult to replicate directly.

Canberra's program is scheduled to complete its first full audit of ACT Government image repositories by September 2026. Digital asset specialists working in the sector point to the ANU's own library digitisation project — which has processed more than 1.2 million catalogue items since 2022 — as a local example of what rigorous deduplication at scale looks like when it is properly resourced.

For ACT public servants dealing with the practical day-to-day version of this problem, the immediate advice from the Chief Digital Officer unit is to use the centralised Canberra.gov.au asset portal rather than local drive storage, and to check the portal's search function before uploading any new image. It is unglamorous, process-driven work. But given that Wellington and Amsterdam have shown the cost savings are real, the case for getting it right is straightforward enough.