Annotation Library.

An annotation management API that enables you to create and manipulate a wide range of annotations, including ranges, characters, lines, points, and underlines. As a comprehensive markup tool, it supports text and image highlighting, strikethroughs, tags, comments, and more. You can also print annotated documents or export them as PDFs.

Document Difference Comparison.

An API that detects differences not only in document content but also in text styling. It offers features such as adjustable diff-check accuracy, the ability to apply changes after comparison, support for files and streams, customizable text styling for comparison through word separators and font colors, and the ability to compare password-protected files.

Electronic Signature Library.

An e-signature API that allows you to sign digital documents in a variety of formats. It can read all registered certificates on the system and add signatures in multiple formats, including text, barcodes, images, and QR codes. You can also use simple or advanced search to locate signatures and customize properties such as shadow, angle, and size.

Document Field Population.

An API that automates document generation and reporting through customizable templates. It supports formulas and sequential data, template-based string formatting, and number formatting for ordinals, cardinals, alphabets, and more. You can also dynamically insert content into reports using variables and conditional formatting.