PkEncode - Version 2.0 PkEncode is a software development kit to encode PDF417 barcodes and then generate digital images. The SDK comes with dynamic link library (DLL) for Windows95/98/2000/XP/NT. PkEncode supports Text, Numeric and Byte Compaction modes. Each symbol can encode 1850 ASCII characters in Text Compaction mode, 1108 bytes in Byte Compaction mode, or 2710 numerical digits in Numeric Compaction mode.And PkEncode supports error correction level 0-8. It also supports Truncated PDF417.