The Best Document and PDF Library SDK

Accurate & reliable rendering, fast & smooth viewing experience, even with large documents. Intuitive document navigation via scrolling, bookmark, outline, annotations and thumbnail.

Text highlighting, underlining and strikeouting, draw and write on PDFs. Easily mark up PDF documents and add images, stamps, comments and reviews. Support full types of PDF annotations and annotation controls.

The PDF Editor comes with its intuitive UI for page manipulation, making it easy to edit pages, organize, reorder, split, merge, extract, add, duplicate, rotate and delete pages.

PDF form filler PDF SDK supports interactive and non-interactive, fillable and static PDF forms. So your users can view, fill out and sign tax forms, invoice, contracts with ease.

PDF signatures library enables you to create and apply high-resolution signatures in PDF documents with ease. Save signature images for easy signing.

The best document conversion SDK to export from the original PDF file to Microsoft Word, Excel, PowerPoint, HTML, Text and more, preserving quality, graphics, text, hyperlinks, fonts, and metadata.

The SDK library supports text search in PDF documents, quickly searching document texts with a fluid and fast search experience and easily selecting texts to copy words, phrases, and paragraphs.

OCR(Optical Character Recognition) performs on PDF files created from scanned documents or images into editable characters, so that you can search, correct, and copy the text. 50+ languages and 99%+ accuracy supported!

Add text or image watermarks on PDFs for document security. Support to batch remove watermarks in a minutes.