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LEADTOOLS Document SDK is ideal for developing document and document imaging applications. Features include PDF viewing, comprehensive annotation and markup, specialized bitonal image displaying, and image processing. Other features include performance and memory optimizations for bitonal images, document image cleanup, including inverted text, border, hole-punch, and line removal, and scanning with LEADTOOLS Fast TWAIN and WIA. The LEADTOOLS Excel SDK - included in the Document SDK - gives developers the power to load, create, edit, and save Excel sheets programmatically.

The LEADTOOLS Document SDK provides software developers with a comprehensive set of tools to integrate advanced document-editing capabilities into their applications. It supports precise manipulation of text and layout, allowing users not only to edit content but also to apply visual markup such as highlighting, underlining, circling, strikethrough, and directional annotations like arrows. These capabilities enable more effective document review, collaboration, and presentation, particularly in use cases like legal review, education, and business communication where clarity and emphasis are critical. With native support for PDF, DOC/DOCX, and RTF formats, developers can improve processes, maintain cross-format compatibility, and deliver a consistent, professional editing experience.

LEADTOOLS Document SDK is licensed as Development Licenses, for developers to use the SDKs, and Deployment Licenses, for the right to distribute end user solutions. See our LEADTOOLS Document SDK licensing page for full details.

Learn more on our LEADTOOLS Document SDK product page.