This article explains how to make advanced search for Barcode electronic signatures with GroupDocs.Signature API....Editor Product Solution GroupDocs...
This article explains how to provide advanced verification of QR-code electronic signatures with GroupDocs.Signature API....Editor Product Solution GroupDocs...
This article will help, if you want to add watermark to images inside a document then it can be possible using GroupDocs.Watermark for Java....Editor Product Solution GroupDocs...
The SetProperties method is used to update or add metadata. You can easily add metadata to photos, pdfs or you can update or add data to mp3 files....Editor Product Solution GroupDocs...