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File attachment as unique value

Duplicate Killer – Prevent Duplicate Form Submissions · support · 2026-01-13T15:42:00+00:00

Duplicate Killer – Prevent Duplicate Form Submissions plugin evidence original source source API
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Lukasz resolved
Hi, I’m wondering how this plugin compares file attachments, is it by filename, size, etc? Hello Lukasz, At the moment, Duplicate Killer does not compare file attachments as a unique value — the plugin currently focuses on text-based fields ( such as email, text, phone, number ) to prevent duplicate submissions. That said, this is a very good idea and a use case we’ve already noted. Comparing file attachments (for example by filename or file hash) would be a valuable addition, and it’s definitely something we’re considering for a future update. Thank you very much, NIA Great, thank you for the quick response!

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NIA 2026-01-13T17:03:00+00:00

Hello Lukasz, At the moment, Duplicate Killer does not compare file attachments as a unique value — the plugin currently focuses on text-based fields ( such as email, text, phone, number ) to prevent duplicate submissions. That said, this is a very good idea and a use case we’ve already noted. Comparing file attachments (for example by filename or file hash) would be a valuable addition, and it’s definitely something we’re considering for a future update. Thank you very much, NIA

Lukasz 2026-01-13T22:21:00+00:00

Great, thank you for the quick response!