Bytescout PDF SDK is a .NET library capable to create/modify existing/sign/fill/linearize/optimize PDF documents from .NET programming languages Visual Basic.NET, C#, ASP.NET Key features: * Full set of methods and properties (Bytescout.PDF namespace) to create documents (completely new documents or using existing PDF documents) with ability to draw on the page of existing PDF document; * Font embedding (Type1, TrueType) including Unicode support; * PNG, JPEG, TIFF, JBIG2, CCITT Fax images and image compression modes support; * Linearization support (PDF documents web optimization - documents are loaded faster); * PDF optimization support (internal structure of the document is optimized to reduce file size); * Security options (document permissions) and 40 bit, 128 bit and 128 AES encryption support; * Digital signature support including signing of existing documents and visible signatures; * Threads and beads support; * Built-in EMF to PDF conversion engine including support for EMF images produced by virtual EMF printers; * 40 bits, 128 bits, 128 bits AES security options, password protection options (demo); * Capable of removing protection, appending pages to the existing documents, changing security settings, drawing on existing PDF documents and much more * Ability to handle produced PDF document in memory without need for temporary files and provide on-the-fly generation directly into memory stream(requires additional Web License); * Ability to split, merge, extract pages from PDF document and append to an another document using pages manager class; * Embed attachments (from file, stream, buffer) into PDF documents;