Duplicate Image Replacement: What Changed This Week for Melbourne's Digital Archive Industry

Melbourne's cultural and media institutions moved quickly this week to address a growing problem in their digital collections: thousands of duplicate images clogging archives, inflating storage costs and undermining the integrity of publicly accessible records. The State Library Victoria confirmed it is piloting a new deduplication workflow across its Digitised Collections program, with the first phase covering approximately 140,000 scanned images dating from the 1880s to the 1950s.

The timing matters. Across Australia, the volume of digitised archival content has surged since the pandemic, as institutions raced to put collections online. That urgency created a secondary headache: inconsistent file naming, multiple scans of the same object and legacy catalogue errors meant that duplicate images multiplied faster than anyone systematically tracked them. For institutions that charge licensing fees or supply images to academic publishers, duplicate records don't just waste server space — they create legal and attribution risk.

Tools, Trials and the Local Players Driving Change

The State Library's pilot, which began the week of June 30, uses perceptual hashing software — a technique that generates a compact fingerprint for each image and flags near-identical files even when resolution or colour balance differs slightly. The library is working with Melbourne-based digital asset consultancy Hive Digital, headquartered on Collins Street in the CBD, to validate flagged duplicates before any file is permanently retired from the catalogue. A second institution, the Australian Centre for the Moving Image (ACMI) in Federation Square, announced Thursday it would begin a parallel audit of its own born-digital collection later this month, focusing initially on still photography from its 2022–2025 acquisition period.

Smaller creative businesses felt the week's developments too. Several independent design agencies in Fitzroy and Collingwood reported adopting updated internal policies after Adobe updated its Creative Cloud Libraries terms on July 1, tightening how duplicate assets are stored and billed across team accounts. For studios running 20 or more seats — a common size in the Richmond and South Yarra agency belt — the practical cost of unmanaged duplicates is no longer abstract. Adobe's revised storage tiers mean that accounts exceeding their allocated asset ceiling face charges of around $AU 15 per additional 100 gigabytes per month, a figure several studio managers flagged as a catalyst for finally clearing legacy image libraries.

What the Numbers Actually Show

A 2025 survey by the Digital Preservation Coalition, published in March of that year, found that cultural heritage organisations globally were storing an average of 23 per cent more data than their actual unique-content holdings warranted, largely because of duplicated files. Australian institutions were not surveyed separately, but sector observers here have used that figure as a rough planning benchmark when scoping deduplication projects. At the State Library, project documentation seen by The Daily Melbourne indicates the pilot aims to reduce active image storage load by at least 18 per cent by the end of the September quarter.

The practical stakes extend beyond storage bills. When an archive holds two or more versions of the same image under different catalogue identifiers, researchers and journalists can inadvertently cite the same source twice, or — more seriously — license what they believe to be distinct images from separate shoots or photographers. That kind of error has generated formal complaints to the Australian Copyright Council in recent years, though the council does not publish a breakdown of complaint categories.

For Melbourne's creative and research communities, the clearest near-term advice from institutions running these pilots is straightforward: audit before you add. The State Library is offering a public webinar on July 17 outlining its deduplication methodology, open to archivists, librarians and digital asset managers at no cost. ACMI plans to publish its audit framework publicly once the internal review is complete. Studios and agencies that have not yet reviewed their Creative Cloud or equivalent cloud storage arrangements should do so before the next billing cycle — because this week made clear the cost of inaction is starting to show up on invoices.