GroupDocs.Signature

v21.7.0

GroupDocs.Signature for .NET 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, VSDX/VSD, JPG, PNG, TIFF, HTML and many others. Sign, create, search, verify document signatures for all popular document formats and set different signing options to suit your needs with GroupDocs.Signature for .NET API. Features: * Document signatures - Digital - signatures based on a certificate file (supported by PDF, Spreadsheet, Words formats); - Barcode - adds barcode to document pages (over 60+ different types) * PostCodes; * Codabar; * Code128; * Code16K; * Code39; * Databar; * EAN; * ISBN; * VIN and others. - QR-code - adds QR-code to document pages with ability to embed encrypted data into QR-code * Aztec; * DataMatrix; * QR; * GS1DataMatrix; * GS1QR. - Metadata - inserts any data types as hidden document content in a document metadata in a dictionary manner with unique key; - Text - different type of text object like text stamp, labels, annotations, watermarks ; - Image - places an image to document page; * Text as image; * Image - various graphics, figures and polylines. - Stamp - adds various kind of stamps to document as different stamp shapes circle or rectangle; - Form Field - fills document form fields with provided data (for PDF documents only). * Search - returns a list of document signatures - Digital signatures for Pdf, Spreadsheet, Word documents; - Barcodes in all supported document types; - QR-codes in all supported document types with ability to decrypt embedded data into any object - Metadata signatures in all supported document types; - Form-field signatures in all supported document types. * Verify - checks that document contains signatures that meet the specified criteria. Supported signature types: - Text; - Digital; - Barcode; - QR-code. * Update - updates signatures in the documents. Supported signature types: - Text; - Image; - Barcode; - QR-code. * Delete - removes signatures from the documents. Supported signature types: - Text; - Image; - Barcode; - QR-code. * Styling - wide settings range for visualization effects such as text and image opacity, colors, fonts, rotation and other effects; * Document basic information - basic metadata for provided source document (size, page count, file type, created/modified dates etc.). Supported document formats: * Portable Document Formats - PDF (PDF/A-1a, PDF/A-1b, PDF/A-2a) * Microsoft Word documents - DOC, DOCX, DOCM, DOT, DOTX, DOTM, RTF * Microsoft Excel spreadsheets - XLS, XLSX, XLSM, XLSB, * Microsoft PowerPoint presentations - PPT, PPTX, PPS, PPSX, PPTM, POTX, POTM, PPSM; * Open Document formats - ODT, OTT, ODS, OTS, ODP, OTP; * Image - TIFF, TIF, JPG, JPEG, PNG, GIF, BMP, ICO, JP2, J2C, J2K, JPF, JPX, JPM, WMF, EMF, WEBP, PSD; For more details on the GroupDocs.Signature for .NET API, please visit product website at: https://products.groupdocs.com/signature/net Note: GroupDocs.Signature for .NET will run in evaluation mode. In order to test full features of the product, please request a free 30-day temporary license.