![pdf417 generator app pdf417 generator app](https://www.codeproject.com/KB/library/1347529/Pdf417EncoderDemo.png)
Scan the left row indicator column and the right row indicator column.If the image contains more than one PDF417 barcode, the following steps will run for each barcode.The maximum tilt angle of the barcode relative to the image is about plus minus 30 degrees from the horizontal axis. If no start and stop signatures are found, scan the image right to left. Scan the image horizontally line by line, left to right, and locate the start and stop patterns.Read the image file and convert it into Boolean array of black and white pixels.PDF417 Barcode Decoding ProcessĪn example of PDF417 barcode taken from the Wikipedia article referenced above is given below:
![pdf417 generator app pdf417 generator app](https://i.pinimg.com/originals/4b/12/ad/4b12ad061598d227c381059b4051d6ca.jpg)
#PDF417 GENERATOR APP HOW TO#
How to integrate the decoder to your application. This article explains the decoding process.
#PDF417 GENERATOR APP SOFTWARE#
The software attached to this article is a PDF417 decoder library, and two demo/test programs. I strongly recommend that you download this document if you want to fully understand the decoding process. An early version of the specifications is freely available to be downloaded at this website. The PDF417 standard can be purchased from the ISO organization at this website. Wikipedia provides a good overview of the PDF417. The barcode documentation and specification can be found in the following websites. The Pdf417VideoDecoder captures web camera pictures and decodes the PDF417 barcodes. The Pdf417DecoderDemo reads barcode image files. Two demo/test projects are included to test the library. Methods are available to translate byte array to a text string based the ISO-8859 standard. The primary result is a byte array or multiple byte arrays.
![pdf417 generator app pdf417 generator app](https://i.pinimg.com/600x315/ec/21/b6/ec21b60c8b21a7c9e387c21185ac07a1.jpg)
The decoder class reads an image file containing PDF417 single barcode or multiple barcodes and returns an array of results. You can use the encoder article to generate barcode image files to test the decoder. The first article is PDF417 Barcode Encoder. It is the second article published by this author on encoding and decoding of PDF417 barcodes. The PDF417 barcode decoder class library allows you to extract PDF417 barcode information from image files.