Short answer
Compare content alongside name and size and record each copy’s purpose. Equal hashes can indicate identical content without making a backup unnecessary. Different versions may share a name and should be retained as different versions.
Key verification: The test deletes nothing; it reconstructs equality, path and retention purpose.
Sources and limitationsTwo files named quote.pdf may be different offers. Two different names may contain exactly the same PDF. This guide classifies candidates rather than reclaiming space at any cost. Start with a test folder containing verified copies, preserve originals outside it and understand how each project uses its paths.
Three matches requiring different decisions
| Fictional case | Content | Initial decision |
|---|---|---|
| Same name and different hash | Different versions | Do not merge by name |
| Different name and same hash | Exact-duplicate candidates | Check purpose and dependencies |
| Same hash in backup folder | Recovery-purpose copy | Retain under backup policy |
Read-only PowerShell check
Use Get-FileHash to calculate SHA-256 for two test files. Replace paths with your own authorised files. The command reads content without deleting it. Matching hash and size is practical equivalence evidence, not sufficient reason to remove a recovery-purpose copy.
Get-FileHash -LiteralPath 'C:\ensayo\A\presupuesto.pdf' -Algorithm SHA256
Get-FileHash -LiteralPath 'C:\ensayo\B\presupuesto.pdf' -Algorithm SHA256Retain result, size, path and check date. If a file changes later, the old hash no longer describes it. Visual similarity is not binary equality: a regenerated PDF may look identical but have different metadata. An issued or signed version’s documentary identity matters even when another visually equivalent copy exists.
Evaluate Abelssoft and close the inventory
Abelssoft describes FileFusion and fingerprint-based duplicate detection. Evaluate path, link and recovery preservation on a sample; do not assume consolidation equals deleting independent copies. Confirm compatibility and licensing. CallsIQ has not tested FileFusion or established a storage-saving result.
Accept the inventory when every candidate has a classification, retention destination and reviewed dependencies. Open the original project and check resources remain available before deciding any later intervention. Hashes and a worksheet suffice for a few files; a tool helps only when it reduces work without hiding what remains.
Sources and limitations
Documentary review: . Content type: Documentation-based guide with original exercise.
Sources describe terms and capabilities stated by their owners. Proposed protocols and fictional examples do not establish product tests performed by CallsIQ.
- Get-FileHashlearn.microsoft.com
- FileFusion and fingerprint-based duplicate detectionabelssoft.de
Check current terms
Consider these options if they solve the problem described. Confirm features, limits and availability in your country.
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Official sources, explained calculations and clearly labelled examples. Read about our methodology and use of AI in writing.