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File type inspector

Compare a file's real signature with its filename before you open or share it.

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Processing

Only the first 64 bytes are read in your browser.

Supported input

Any file with a supported signature.

Limits and example

Limit

Only the first 64 bytes and a limited signature catalogue are checked. This is not a malware scan.

Example

Check whether a file named as a PDF actually starts with a PDF signature.

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