Check a signed document

Drop a PDF here to see if it is an exact copy of a document sealed by Lead16.

Drop a PDF here, or choose a file

Your file stays on your device. Your browser works out its fingerprint, and only that is checked.

What this does and does not show

A match means the file is exactly what Lead16 finished, byte for byte, and the record of who signed it has not been edited since.
This is tamper evidence from Lead16. It is not an Adobe-trusted certificate, so a PDF reader will not show a green tick.
It shows a document has not changed. It does not give legal advice about what the document means.