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SHA-256

SHA-256 is a hash algorithm that computes a 64-character "fingerprint" for a file. The same file always gives the same value, and changing a single byte gives a completely different one, so it can be used to check whether a file has been changed.

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How this software uses it

  • Download checks: the download page and the changelog publish the SHA-256 of every installer.
  • Language packs: SHA-256 is checked when a language pack is downloaded or imported; a pack that does not match is not installed.
  • Operation record: manifest.json records the SHA-256 of the original and output files, so you can confirm that a delivered file is the output produced at that time.
  • Recognition cache: recognition results are cached by a hash of the file content and become invalid automatically when the content changes.

How to compute it

Windows PowerShell:

Get-FileHash .\file.pdf -Algorithm SHA256

Or use the SHA-256 file checker on this site, which computes the value locally in your browser.

Related pages

Verify your download

After downloading EnjoyPDF, compute the installer's SHA-256 in PowerShell and compare it with the value on the download page to confirm the file is complete and unmodified before you run it.

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SHA-256 file check

Compute the SHA-256 of any file and compare it with the expected value.

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Operation record

A JSON file EnjoyPDF writes next to each output: SHA-256 of input and output, counts, check results, risk decision and version. No replaced or deleted text.

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