If so you can download any of the below versions for testing. The product will function as normal except for an evaluation limitation. At the time of purchase we provide a license file via email that will allow the product to work in its full capacity. If you would also like an evaluation license to test without any restrictions for 30 days, please follow the directions provided here.
If you experience errors, when you try to download a file, make sure your network policies (enforced by your company or ISP) allow downloading ZIP and/or MSI files.
Document eSigning Cloud REST API
GroupDocs.Signature Cloud provides a comprehensive solution for integrating e-signatures into web apps, scripts, and automation workflows. It supports a wide range of signature types — text, image, barcode, QR-code, digital, and stamp — across Word, Excel, PDF, presentation, and image formats. Developers can customize signature appearance, placement, and security, apply digital certificates, verify signature authenticity, and search for existing signatures within documents. Whether signing a single page or managing multiple signatures across a document collection, GroupDocs.Signature delivers robust tools for secure and efficient cloud-based document signing.
GroupDocs.Signature Cloud Feature Set
Cloud Document Signing Features
Apply Signatures to Specific Pages - Apply signatures on even, odd, or specific pages for precise placement.
Configure Page Padding - Set page padding to align signatures precisely on each page.
Customize Signature Appearance - Control fonts, colors, and style of signatures.
Apply Background Crop Settings - Use background crop settings to improve signature visibility.
Repeat Signature String - Repeat signature strings to fill defined areas.
Digital Signatures with CryptoApi & XmlDsig - Support digital signatures via CryptoApi and XmlDsig.
Align Text for Barcode Signatures - Align barcode signatures using configurable text.
Sign Password-Protected Documents - Sign password-protected documents.
Verify Document Signatures - Verify authenticity and validity of document signatures.
Search for Signature Types - Search for specific signature types within documents.
Advanced Features
Customize Signature Appearance - Customize signature fonts, colors, and style.
Manage Multiple Signatures - Handle multiple signatures in one document.
Password Protection for Documents - Add password protection to signed documents.
Verify Signature Authenticity - Validate authenticity of applied signatures.
Search for Specific Signatures - Search for text, barcode, QR-code, and digital signatures.
Update and Delete Signatures - Modify or remove existing signatures from documents.
Barcode and QR-Code Signatures
Supported Formats for Barcode/QR Signatures - Supports DOC, DOCX, XLSX, PDF, and image formats.
Customize Barcode/QR-Code Signatures - Customize appearance and content of barcode/QR signatures.
Barcode/QR-Code Usage Scenarios - Use cases include document tracking and identification.
Stamp Signatures
Overview of Stamp Signatures - Visual and text stamp signatures for official documents.
Customize Stamp Signatures - Adjust stamp size, text, and appearance.
Supported Signature Types
Text Signature - Add customizable text labels with font, color, and alignment.
Image Signature - Apply image signatures with opacity, grayscale, brightness, and contrast.
Barcode Signature - Add barcode types with flexible appearance, alignment, and encoding.
QR-Code Signature - Insert QR-Code signatures with customizable encoding and appearance.
Digital Signature - Apply digital certificates (PFX, CRT) to documents or PDF pages.
Stamp Signature - Place stamp images on pages with flexible customization.
File Operations
Upload Files to Cloud - Upload files to cloud storage via the API.
Download Files from Cloud - Download files from cloud storage to local systems.
Copy Files - Copy files within the cloud storage to different locations.
Move Files - Move files between folders in cloud storage.
Delete Files - Delete specific files from cloud storage.
Folder Operations
Create Folder - Create new folders in the cloud storage.
Copy Folder - Duplicate folders within the cloud storage.
Move Folder - Move folders between directories in cloud storage.
Delete Folder - Remove entire folders from cloud storage.
Licensing and Authentication
Evaluation Mode - Try the API with a free trial account.
Secure Authentication - Use Client ID and Client Secret for secure API access.
GroupDocs.Signature Cloud supports signing across the following format categories:
- Word Processing: DOC, DOCX, DOCM, DOT, DOTX, DOTM, ODT, OTT, RTF, TXT
- Spreadsheets: XLS, XLSX, XLSB, XLSM, CSV, ODS, OTS, TSV
- Presentations: PPT, PPTX, PPTM, PPS, PPSX, PPSM, ODP, OTP, POTX, POTM
- PDF: PDF
- Images: BMP, GIF, JPEG, PNG, TIFF, SVG, PSD, WEBP, ICO, EMF, WMF, and more
Supported signature types vary by format. For the complete format matrix, see the documentation.