Source: https://restorebunny.com/guides/verify-a-photo-zip-before-delivery/

# Verify a Photo ZIP Before Delivering It

Check archive contents, extraction and file integrity before treating a compressed package as complete.

File formats & delivery2 min readUpdated 16 October 2026

## Try it on your own photo

Repair a copy of your photo, then compare faces and details with the original.

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Quick answer

## The short version

A ZIP file is a container for the delivery set. It does not prove that the intended files were included or that the recipient can extract them. Build it from an approved folder and verify its contents after extraction into a separate location.

## Define the job before editing

A ZIP file is a container for the delivery set. It does not prove that the intended files were included or that the recipient can extract them. Build it from an approved folder and verify its contents after extraction into a separate location.

## Check the extracted files, not only the archive list

Compare the file count and filenames against a delivery manifest. Open representative images and inspect important captions or sidecars. If exact integrity matters, compare hashes of the extracted files against the approved sources. Keep the original delivery folder until the handoff is confirmed.

## Make the decision from evidence

Avoid ZIP packages that contain a confusing nesting of working folders, old finals and hidden private notes. Use a clear top-level name and include a README if the structure needs explanation. Do not expect compression alone to make already compressed photos dramatically smaller.

## A worked planning example

Example: A ZIP is intended to contain twelve image tiles. Extraction reveals eleven because one file was excluded during selection. The manifest check catches the missing lower-right tile before the recipient attempts to assemble the design.

## A practical checklist

1. Build from an approved source folder.
2. Extract into a fresh test folder.
3. Compare manifest and actual contents.
4. Open images and resolve mismatches.

## Keep a traceable result

Keep the source file, the working copy and the delivery copy as separate items. Record the input and the changes you actually made so another person can understand the result later. These workflow examples are planning examples, not documented customer outcomes or proof of a successful restoration.

## FAQs

Does a successful ZIP download mean every included photo is correct?

No. Inspect the extracted files and compare them with the intended delivery set.

Should I replace my original with the edited copy?

Keep the source unchanged and save a separate working or sharing copy. An export, edit or AI interpretation can omit information that remains useful in the source.

## Sources

Preservation and technical guidance reviewed for this article.

- MDN Web Docs: [SHA-256 with SubtleCrypto.digest](<https://developer.mozilla.org/en-US/docs/Web/API/SubtleCrypto/digest>)

## Related

- [Open the related free tool](<https://restorebunny.com/tools/image-hash-checker/>)
- [Prepare an Offline Family Photo USB Delivery](<https://restorebunny.com/guides/offline-family-photo-usb-delivery/>)
- [Write Useful Descriptions for Photos in a Digital Album](<https://restorebunny.com/guides/write-useful-photo-accessibility-descriptions/>)
- [Browse photo guides](<https://restorebunny.com/guides/>)
- [Free image tools](<https://restorebunny.com/tools/>)

## Ready to restore your photos?

Upload an image, choose your settings, and preview results with a before/after slider.

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