Interleaved 2 of 5 Barcode Overview

Interleaved 2 of 5 (also referred to as USS Interleaved 2 of 5, Code 25 Interleaved, and ITF) is a high density, numeric only barcode. Because each Interleaved 2 of 5 barcode character represents two digits, it is a very compact barcode and ideal for numeric data. If other characters and functions are required such as letter, tabs, returns, etc. another barcode should be considered such as Code 39 or Code 128. Because Interleaved 2 of 5 barcodes encode numbers in pairs a leading zero may be required for a number with an odd number of digits.

Interleaved 2 of 5 is a self-checking barcode type, meaning that a check character is not required for a barcode scanner to read it, although many implementations include a check character to assure data integrity. Like other barcodes, Interleaved 2 of 5 barcodes require start and stop characters.

PrecisionID Interleaved 2 of 5 Barcode Font Package Contents

The PrecisionID Interleaved 2 of 5 Barcode Font Package contains 6 sizes of Windows TrueType (TTF), Binary PostScript (PFB), and ASCII PostScript (PFA) fonts. Additionally, each font variant is supplied in "text readable" and "barcode only" formats where the "text readable" versions display the barcode with the numeric characters below the barcode and the "barcode only" versions display the barcode without numbers. The "text readable" versions have a "T" in the font name, i.e. PrecisionID ITF T12.

The PrecisionID Interleaved 2 of 5 Font Package also includes a User's Guide with specifications correlating specific fonts and point sizes with X dimensions and printed height. The User's Guide also includes several tutorials, explaining in step-by-step fashion, application of in several common Windows applications. In addition to the barcode fonts and User's Guide, PrecisionID's Interleaved 2 of 5 Font Package includes application examples for Microsoft Word (Mail Merge), Excel, Access, and Crystal Reports.

Most implementations of Interleaved 2 of 5 require use of a MOD 10 check digit. For implementations requiring the check digit, we provide PrecisionID Font Formatting Components(TM). These components includes a Microsoft VBA module for Microsoft Office applications and a UFL for Crystal Reports. For other applications or languages, the source code of these modules may be used as a guide for conversion. For manual calculation of the check digit, simply sum the odd digits, multiply by 3, add the even digits, divide by 10, use the remainder as the check digit.

USS Interleaved 2 of 5

USS Interleaved 2 of 5 (Uniform Symbology Specification Interleaved 2 of 5) is the published specification for Interleaved 2 of 5 which is published and maintained by the Uniform Code Council.

USPS Special Services

Interleaved 2 of 5 is used for USPS special services such as return receipts and delivery confirmations. These implementations require use of the MOD 10 check digit. See USPS barcode specifications for more details on these implementations.

GTIN and ITF-14 Barcodes

GTIN (Global Trade Item Number) is a 14 digit, global identification structure in the EAN.UCC system. Different barcode structures may be used to represent this data including ITF-14, EAN/UPC, UCC/EAN-128, and Reduced Space Symbology (RSS). Interleaved 2 of 5 may be used to create ITF-14 compliant barcodes. ITF-14 barcodes are typically used for shipping units of corrugated packaging. For more information on formatting requirements for these barcodes, contact the Uniform Code Council.

Identcode and Leitcode Symbols

Interleaved 2 of 5 may be used to create Identcode and Leitcode symbols used by the German Post. Identcode and Leitcode symbols require a MOD 10 check digit; however, it is calculated slightly different than the USS Interleaved 2 of 5 MOD 10 check. For Identcode and Leitcode the check is calculated by multiplying the sum of the even digits by 9 and multiplying the sum of the odd digits by 4; adding these two number together and dividing by 10. The remainder from this division is the check. Contact the German Post for more details and specifications.

Free Interleaved 2 of 5 Demonstration Package

To enable evaluation of PrecisionID's Interleaved 2 of 5 Font Package prior to purchasing, a free evaluation package is available. The PrecisionID Interleaved 2 of 5 Demo Font Package is identical to the purchased package as described above except the font contains a "demo" watermark on select characters. The demo package produces readable barcodes to allow you to fully evaluate our product before investing. Click here to download the free demo version.

How to order

To order PrecisionID's Interleaved 2 of 5 Font Package, click the "Add to Cart" button above to add it to your shopping cart. To finalize the order, click the "Checkout" button at the top of the page to begin the payment process. Payment by credit card is required. When entering billing information, enter the billing address of the credit card you are using for payment. For the e-mail address enter the e-mail address where you wish the product download link sent.

Upon successful completion of the transaction, a confirmation e-mail with the PrecisionID Interleaved 2 of 5 Font Package download link will be sent. This message also serves as a receipt. The e-mail link is sent nearly immediately; however, some corporate e-mail systems and SPAM filters may delay the e-mail. If you do not receive the e-mail within a few hours, please contact PrecisionID for help. Per PrecisionID's EULA, PrecisionID's return policy is 30 days.