Calculate a SHA-256 file hash
Calculate a SHA-256 file hash. Configure the available options, inspect the result and download it from your browser.
How it works
- Choose the supported source file or files from your device.
- Choose the PDF whose exact bytes you want to identify.
- Calculate the SHA-256 value and copy it for comparison.
This tool performs calculate file hash in the shared PDF Studio workspace. Inspect the exported result before using it.
When to use this tool
Check whether two file copies have identical bytes.
What to check before sharing
Any byte change alters the hash. A matching hash does not identify the author or verify a digital signature.
Supported files
Calculate a SHA-256 file hash.
Inputs: PDF. Performance depends on your device. Download important work before closing the browser; local storage is not a backup.
Troubleshooting
If the file will not open, check it in another PDF reader. If it is password-protected, use Remove a PDF password with a password you know. For scans that need selectable text, run Make a PDF searchable first.
Common questions
What is this tool useful for?
Check whether two file copies have identical bytes.
What should I check in the result?
Any byte change alters the hash. A matching hash does not identify the author or verify a digital signature.
Which files can I use?
Supported inputs: PDF. Calculate a SHA-256 file hash.
Is this free?
Core tools require no account or subscription and add no watermark.
Do my documents leave my device?
Document processing runs in your browser. PDF Studio does not upload document files. Explicitly saved drafts and My files remain in this browser until deleted. Read aloud may use network-backed browser voices.