This tool checks whether an uploaded PDF contains a valid Kautschuk Group ERP PDF signature. The file is used only for this check and is deleted immediately afterwards.

Maximum file size: 20 MB. Upload only PDF documents. Do not upload documents that you are not allowed to share with Kautschuk Group.

How to read the result

An authentic result means the PDF signature is valid, the signed part covers the whole file, and the signing certificate chain matches the Kautschuk Group ERP PDF signing certificate published on our Information Security page.

This tool checks the digital seal on the PDF file. It does not replace normal business review of the document content.