Enhanced fork of boombuler/barcode with extended PDF417 barcode configuration options.

This fork adds the ability to precisely control the number of columns in PDF417 barcodes through the Options structure.

type Options struct {
    ECCLevel byte // Error Correction Code Level (0-8)
    Columns  int  // Number of columns (0 = auto, 1-30 = fixed)
}

ECCLevel (Error Correction Code Level)

• Range: 0-8
• Controls error correction level
• Higher level = more redundancy, but larger barcode size

Columns (Number of columns)

• 0 - automatic calculation of optimal column count
• 1-30 - fixed number of columns
• Allows creating barcodes of specific width

import "github.com/Rapir-0/barcode/pdf417"

// Standard generation
barcode, err := pdf417.Encode("Hello World", 0)
if err != nil {
    log.Fatal(err)
}

import "github.com/Rapir-0/barcode/pdf417"

// Generation with custom options
options := pdf417.Options{
    ECCLevel: 4,      // Medium error correction level
    Columns:  10,     // Fixed 10 columns
}

barcode, err := pdf417.EncodeWithOptions("Hello World", options)
if err != nil {
    log.Fatal(err)
}

// Compact barcode (minimum columns)
compact := pdf417.Options{ECCLevel: 0, Columns: 1}

// Wide barcode with high reliability
wide := pdf417.Options{ECCLevel: 8, Columns: 30}

// Automatic selection with high error correction
auto := pdf417.Options{ECCLevel: 6, Columns: 0}

• Fully compatible with the original boombuler/barcode library
• All existing functions and interfaces preserved
• New functionality available through additional methods

This fork inherits all capabilities of the original library:

• Support for multiple barcode types
• High performance
• Simple API
• Scaling and color schemes

go get github.com/Rapir-0/barcode/pdf417

MIT License (inherited from the original library)

Fork Author: Rapir-0
Original Library: boombuler/barcode