Office

PDF Stamp

Open a contract PDF, upload a transparent stamp, position it on the preview, and export the stamped document.

Start using this tool ›Email login · Free 3-day trial for new accounts

How to use it

  1. Open the tool and log in with your SKUPOR email account, or register and verify your email.
  2. Select your files or enter your information. Adjust the available settings and preview the result.
  3. Check the output, download it to your device, and keep a backup if needed.

Before you start

Image stamping only; this does not provide a digital certificate or certified electronic signature.

Where are my files processed?

Local tools run in your browser. Conversion, recognition, translation and portrait cutout use our own server after you confirm the upload. Temporary files are cleaned up automatically.

Changing the interface language does not translate your documents or entered content. Some templates contain Chinese text; check or edit the output before using it.