elDoc allows users to add watermarks, QR codes, and barcodes directly to documents, helping enhance document security, identification, tracking, and access to linked information.

To add a watermark, navigate to the File Management Module, open the required text-based document, and select the Watermark functionality. Configure the watermark text and available settings such as font, angle, transparency, and color.

To add a QR code or barcode, select the corresponding option and configure the required parameters, including the content to be encoded, such as a URL or other relevant information. For a step-by-step demonstration, refer to the relevant elDoc tutorial.