Digitally Sign Documents via cURL APIs
cURL Signature REST APIs to apply, verify & search eSignatures in various file formats. Supports diverse varieties of electronic signatures.Start Free Trial
GroupDocs.Signature Cloud for cURL
cURL is a free client-side URL transfer library that allows you to handle HTTP requests and responses in dealing with the GroupDocs.Signature Cloud REST API. The API allows you to create, verify and search different type of signature objects in a number of document formats. It provides a wide variety of signature options like putting signatures on a document, verify document and search signatures in it. The API supports HTTP requests and get responses in form of JSON or XML data. Hence, any language or platform which supports the HTTP requests and responses is capable of running the API.
Some of the Operating Systems and Frameworks supported by our e-Signature REST API
Supported File Formats
GroupDocs.Signature Cloud supports electronically signing a number of document formats.
- Word Processing: DOC, DOCX, DOCM, DOT, DOTX, DOTM, ODT, OTT, RTF, TXT
- Spreadsheet: XLS, XLSX, XLSB, XLSM, ODS, OTS, CSV, TSV
- Presentation: PPT, PPTX, PPTM, PPS, PPSX, PPSM, POTX, POTM, ODP, OTP
- Image: BMP, DjVu, DNG, EMF, EPS, GIF, JP2, JPF, JPX, J2C, J2K, JPM, JPG, JPEG, ODG, PNG, PS, PSD, SVG, TIF, TIFF, WebP, WMF
- Portable: PDF
At a Glance
An overview of the features supported by GroupDocs.Signature Cloud for cURL.
- Document Pages information
- Document Properties
- Supported formats list
- Text and Digital
- Barcode and QR-Code
Advanced Document Signature REST API Features
Provide the list of supported document formats
Retrieve document pages information
Retrieve document properties
Verify Text and Digital signatures
Verify Barcode and QR-Code signatures
Get Started with Document Signing REST API
It is easy to get started with GroupDocs.Signature Cloud as there is nothing to install. Simply create an account at GroupDocs Cloud and get your application information. Once you have the App SID & key, you are ready to give theGroupDocs.Signature Cloud REST API a try with any language - on any platform. Our e-Signing API for cloud allows you to e-sign a variety of documents with well-structured API calls.
Supported Signature Types
Our e-Signature RESTful API supports the following signature types:
- Text Signature
- Image Signature
- Barcode Signature
- QR-Code Signature
- Digital Signature
- Stamp Signature
The API has flexible methods to add supported signatures to a number of supported document formats. For instance, the API provides methods to create Text Signature in Document Pages with different options of Text, location, alignment, font, margins, appearances and others in cURL command. Below mentioned is the simple example that shows how to retrieve supported file formats list using the cURL command.
Supported file formats list - cURL
curl -X GET "https://api.groupdocs.cloud/v2.0/signature/formats" -H "accept: application/json" -H "authorization: Bearer xxxxxx"
Cloud based e-Signing API Features
GroupDocs.Signature Cloud REST APIs allow the following operations with documents:
- Provide list of supported document formats
- Obtain list of supported Barcode and QR-Code encode type names
- Retrieve document properties like document size, creation and update dates, count of pages etc
- Retrieve document pages information like pages count etc
- Support signature for PDF documents
- Support signature on Microsoft Documents formats like MSWord Documents, Excel Spreadsheets, PowerPoint Presentations
- Support signature for Open Document Formats, HTML and many more
- Verify documents for signatures
Flexible Deployment Options
Our RESTful electronic signature API is easy to understand, clearly documented and comes with SDKs and live examples for all major languages. For developers who prefer on-premises deployment, we also offer downloadable APIs for .NET, Java, PHP and many other platforms.
Extensive File Type Support
GroupDocs.Signature allows end users to sign documents literally in all common business formats, including PDF, Microsoft Word, Excel, PowerPoint, Rich Text format etc.
Being a RESTful API, GroupDocs.Signature Cloud can be used with any language or platform which supports HTTP requests and responses. You can also use GroupDocs.Signature Cloud with many third party storage providers including Amazon S3, Google Cloud, Google Drive and DropBox.