Main Features

• Fast and lightweight .NET class library and set of controls with small footprint make it easy to distribute with your applications
• Provided as 32 and 64-bit managed code .NET assemblies
• PDF/A: Create PDFs that comply with the PDF/A-1, PDF/A-3, PDF/X-1 and PDF/X-3 ISO Standard while embedding your custom XMP metadata
• XPS document support: Supports loading XPS documents and exporting documents into XPS format
• Editing and Printing: Edit and print PDF documents programmatically without any user interaction
• Tagged PDF: Create structured PDF documents as defined by the PDF specifications. Structured PDFs are easier to edit or export into other applications
• Support for various types of form objects and annotations such as edit-fields, check-boxes, sticky-notes, highlighters, and others

PDF Specific Features

• Support for a wide range of PDF files such as the PDF 1.7 format and compressed XRef tables

Resave existing PDF files into PDF 1.4, 1.5, or PDF/A formats

• Optimize PDF documents for downloading through the web, also known as PDF linearization
• Compression of images, graphics, and text heavily reduces the size of the resulting PDF file
• Support for loading, creating and displaying layered PDF files
• Support for loading FDF documents that contain external data associated with the main PDF
• Access to the internal PDF file structure through a comprehensive class architecture
• Add custom metadata to the XMP metadata stream of a PDF
• Add and extract file attachments to and from PDF files
• Logging capabilities ensure detailed detection and warning of errors during PDF processing

Text and Font Features

• Unicode and CID font embedding enable support for a wide range of fonts including Asian (CJK) fonts

• Support for OpenType®, TrueType® and Type1 fonts to ensure perfect portability
• Ability to specify the location of external character maps (CMAPs)

• Text anti-aliasing improves on-screen document legibility (requires font installation on client PC)
• Search/Replace capabilities from the user-interface or programmatically
• Ability to do paragraph editing with reflow

• Needed due to the nature of PDF files that are otherwise not easily editable

• Enhanced text editing operations such highlighting and automatic text resizing

Graphics Features

• Support for reading and writing multiple image compression formats such as JBIG2, JPEG2000, JPEG, CCITT, TIFF, PNG and GIF
• Support for transparencies and alpha-blending techniques
• Render a page or parts of a page to a device context controlled by the calling application
• Export PDF files into XAML in order to integrate with Silverlight controls
• Export PDF documents to a wide range of formats such as XPS, Excel, HTML, RTF, TXT, TIFF, JPEG or BMP

• Specify a range of pages or export the whole document

Viewing and Editing Features

• Area zooming and panning capabilities
• Enhanced functions for adding, inserting, deleting, and moving pages

• Move one or multiple pages within a document or to another document
• Thumbnail panel provides a preview of the pages with drag/drop capabilities

• View and create bookmarks using the bookmarks panel with drag and drop capabilities
• Automatic creation of bookmarks and hyperlinks by analyzing the document contents
• Ability to open a PDF document as a background or template for the main document

Printing Features

• Print a single page to multiple sheets or multiple pages to a single sheet
• Rotate and scale pages during printing
• Print a selection of page or the complete document with or without prompting the user
• Select paper tray options depending on the media type assigned to a page
• Create a single print job from multiple PDFs
• Preview documents using the "Print Preview" report state

Performance Features

• Optimized processing of PDF files containing large graphics

• Delayed loading of JPEG and PNG images until they are required. This improves performance and memory usage during document processing

• Low memory consumption during the processing of large numbers of pages

• Sophisticated page caching algorithm ensures that only a predefined number of pages remains in memory even when the document is modified
• Saving documents page by page allows developers to create very large documents without overflowing memory

• Reduced output file size through high page compression and small embedded font size

Security Features

• PDF documents can be secured using either 40, 128 or 256-bit encryption algorithms to prevent them from being viewed, modified, or even printed
• PDF documents can be digitally signed using any valid certificate installed on the end-user’s system

• Support for both Ansi and Unicode digital signatures

• Ability to remove Metadata or other sensitive information from existing PDF documents

Supported Platforms

• Support for all Current Windows platforms:

Windows 10 and Windows Server 2016: 32- and 64-bit systems

Windows 11, Windows Server 2019 and 2022: 64-bit systems