Introducing GroupDocs.Signature for Java Leave feedback

GroupDocs.Signature is a feature rich library which provides an ability to add stamps, barcodes and QR-codes, text, image, metadata, form field and digital signatures to documents of various formats like PDF, DOCX/DOC, PPTX/PPT, XLSX/XLS, JPG, PNG, TIFF, HTML and many others. 
Sign, search, verify document signatures for all popular document formats and set different signing options to suit your needs with GroupDocs.Signature for Java API.

• No additional software is required to sign documents of different types;
• Wide range of supported signature types - Text, Image, Digital certificate, Barcode, QR-code, Stamp, Metadata, FormField;
• Huge additional options set to customize sign, search and verification processes, apply signature styling, manage appearance etc.;
• Document information extraction - file type, page count etc.;
• Generate document preview for precise placing the signature inside the document.