PDF417 has error correction and can be read back from e.g. a scanner or webcam. 2D barcode PDF417 library A library to generate the bidimensional barcode PDF417. The generated result is a byte array representing the barcode image that can be included in the users application. pdf417 decode Pdf417decode.c can decode PDF417 barcodes from a pbm file. A PDF417 bar code can represent a limited amount of data. This data is converted internally and stored in what are called code words. There is a maximum of 928 internal code words per bar code. Some of the code words are dedicated to the data content itself, and some of the code words are usually dedicated to error correction (ECC) encoding. If the data encoder sets the error correction to the lowest setting, a barcode can encode or store 1,850 text characters or 2,710 numeric digits. PDF417 can support 8-bit binary data as well as 256 ASCII characters. Each individual row gets a start pattern, data code words, quiet zone, row indicators, and stop pattern. Aspose PDF417 Barcode Reader is a free online application to read barcodes from image or your mobile phone's camera. It is able to locate and read multiple barcodes on image. Our sophisticated algorithm allows you to read even damaged barcodes. PDF417 Barcode reader supports many different input formats (PNG, JPEG, BMP, GIF). When a punctuation character (like "!") is followed by a space, the conversion fails. This is caused by the fact that all three if's true for the space (in case the prev char