Interleaved 2 of 5 Bar Code Fonts
(AKA USS ITF 2/5, I-2/5 or ITF 2of5)

(The above sample is an Interleaved 2 of 5 barcode encoding a 12 digit number)

Our Interleaved 2 of 5 Font Advantage Package allows you to print Interleaved 2 of 5 barcodes from any computer system supporting TrueType, OpenType, PostScript or PCL fonts including Windows, DOS and UNIX. Custom BDF, FON, AFP, Xerox Metacode, XES and FNT fonts can also be created with the Developer's License. Our Interleaved 2 of 5 Font Advantage Package is much more than just a few fonts. With this package you receive 12 different font versions in 6 different font formats. You are also provided with font tools, macros and source code to help you integrate the fonts into your application. Implementing solutions with our fonts provides a high level of scalability with operating system, application and printer independence. Learn more about the quality of our fonts.

• The implementation of Interleaved 2 of 5 as a bar code font can be difficult for non-programmers because the barcode symbols are interleaved and cannot be easily printed from the keyboard. If you are not required to use Interleaved 2 of 5 barcodes and you need an easy to use numeric barcode, consider our Codabar fonts which can both be printed directly from the PC keyboard. If your application is Microsoft Access, Excel, Word, Visual Basic, C++ or an application that supports ActiveX in Windows, we also sell easy to use "drag and drop" ActiveX Controls that support Interleaved 2 of 5 as well as other barcode types.
• Interleaved 2 of 5 is a numeric only barcode used for encoding pairs of numbers in a high density barcode format. Interleaved 2 of 5 barcodes always contain an even number of digits because a single Interleaved 2 of 5 barcode character represents two numbers to achieve the high density. If a number containing an odd number of digits has to be encoded, a leading zero must be added to produce an even number of digits in the Interleaved 2 of 5 bar code.
• The Interleaved 2 of 5 symbology is also referred to as USS ITF 2/5, ITF and I-2/5.
• The symbology of the Interleaved 2 of 5 character set consists of bar code symbols representing characters 00 to 99, the space character and start / stop characters.  The complete printed Interleaved 2 of 5 barcode consists of a leading quiet zone, a start pattern, Interleaved 2 of 5 symbols representing data, a stop pattern and a trailing quiet zone. According to ANSI specifications, the quiet zones must be 10 times the width of the short bar in the barcode.
• Interleaved 2 of 5 was designed for character self-checking, eliminating the requirement for checksum characters.  However, checksum characters maximize data integrity and are required by some specifications.
• Interleaved 2 of 5 is commonly used for ITF-14, EAN-14, SSC-14, DUN14 and USPS special services such as return receipts and delivery confirmation. These implementations usually require a MOD 10 check digit. The Interleaved 2 of 5 MOD 10 can be calculated by our font automation tools or manually. Manual calculation is obtained by adding up the odd numbers in the code and multiplying them by 3 and then add up the even numbers. The check digit is obtained by determining the number that when added to the sum will produce a multiple of 10. For example, the check digit for 123456789 is 5 because (3*(1+3+5+7+9))+(2+4+6+8) = 95 and 95 + 5 =100. When calculating check digits, the data to encode should be an odd number of digits because the check digit is interleaved with the last digit.
• The Interleaved 2 of 5 barcode may also be used as for German Post Identcode and Leitcode symbols. Identcode and Leitcode require a checksum to be calculated. The calculation is similar to USS Interleaved 2 of 5 MOD 10 except that even numbers are multiplied by 9 and odd numbers by 4. For example, the check digit for 12345678901 would be "6" because (4*(1+3+5+7+9+1))+(9*(2+4+6+8+0)=284 and 284 + 6 = 290.

Details of the Interleaved 2 of 5 Font Advantage Package are as follows:

• Integration Tools Provided - To help users integrate barcode fonts into their applications, we provide several font automation tools that are free to use with this package such as MS Office Macros for Word, Excel and Access, Visual Basic, FoxPro, ANSI C and JAVA Source Code, LotusScript, FileMaker Pro Plug-ins, Oracle Reports Libraries, Crystal Reports UFLs and a check digit calculation application with Visual Basic and FoxPro source code. The tools provided automatically format and interleave the data to return text that will create a proper symbol with the barcode font.
• 12 Versions Provided - The Interleaved 2 of 5 barcode fonts are scaleable and should be printed at the correct font size to suit your application and scanning equipment.  Twelve (12) versions of the Interleaved 2 of 5 barcode fonts are provided to support different width and height requirements. The last characters in the Interleaved 2 of 5 barcode font name determines the height of the barcode with the shortest being IDAutomationI25XS and the tallest being IDAutomationI25XXL. Human readable versions are also supplied with the shortest being IDAutomationHI25XS and the tallest being IDAutomationSHI25XXL. The Interleaved 2 of 5 font ending in the letter "L" is a special version that will meet USPS special services requirements when printed at 20 points.
• Industry Standard Support - Our Interleaved 2 of 5 barcode font is UNICODE compliant and it was developed according to ANSI USS Interleaved 2 of 5 and European (CEN) standards. Our Interleaved 2 of 5 font can be used for USPS mail special services, EAN-14 and SSC-14 barcode applications. Our "Interleaved2of5Mod10()" function  in our MS Office Macros and font automation tools can be used to encode the MOD 10 check digit required for these specifications. EAN14 and SSC14 are primarily used for distribution applications and serialized carton tracking. 
• Multiple Formats Provided - When you purchase a license for this font package, you will receive all versions in a single ZIP file. The manual is supplied in a file named "ReadMe.html" in the ZIP file. The following fonts are included:
  • TrueType fonts are supplied in PC and Macintosh format. The TrueType TTF fonts are compatible with Macintosh OS X and all versions of Microsoft Windows, including Pocket PC. Macintosh formatted MTT TrueType fonts are compatible with Macintosh System 7.1 and above.
  • OpenType OTF fonts with PostScript outlines are provided. These are compatible with Windows, Macintosh OS X and other systems supporting the OpenType format.
  • PostScript Type 1 fonts are supplied in binary, ASCII and Macintosh versions.
  • Also included in this package are PCL laserjet soft fonts in 12, 16, 20 and 28 points. 
  • With the purchase of a Developer License and 1 year of support and upgrade protection, we can convert fonts from this package to PCL 4, Xerox Metacode, XES, FNT, BDF, FON and AFP. The Developer License also grants you the right to convert our fonts to other formats as necessary including TrueDoc and OpenType.

The Interleaved 2 of 5 barcode fonts were created to meet ANSI and CEN requirements when printing with the font size of 12 or greater. To determine which Interleaved 2 of 5 barcode font to use, first print out the IDAutomationI25S barcode font at various font sizes to determine which size is the smallest that will work with your scanning equipment. Then, choose the tallest version that will fit in your scanning area. You may also refer to the specifications.

NOTE: You don't need to be concerned with the details and complexity of these fonts if you use our font automation tools. However, if you are interested in manually producing the barcodes you will find the information in this section helpful. For manual check digit calculations, please refer to the information provided in the ITF Symbology Overview.

The character set is listed below in columns. The "ITF Code" column lists the character or function that the barcode scanner will read for the associated symbol. The columns ASCII, Char and Unicode are unique to our Interleaved 2of5 fonts. These columns designate the location in either ASCII or Unicode where the barcode symbol for the character resides. The column "Char" lists the character that resides at the ASCII location which can be used to print the corresponding symbol on a Windows system.

The Visual Basic Application Sample Code:

The following is a simple Visual Basic application used to print the Interleaved 2 of 5 barcode. Note that the IDAutomationI25M font must be installed for this application to work unless you change the font name in the code. You may use this Visual Basic source code in your application as long you purchase a license for our font and the copyright notice is not removed.

Dim CurrentChar As Integer
DataToEncode = InputBox("Enter numbers to encode in the Interleaved 2 of 5 font - Enter numbers only.")
'Check for an even number of digits, add 0 if not even
If (Len(DataToEncode) Mod 2) = 1 Then DataToEncode = "0" & DataToEncode
'Assign start and stop codes
StartCode = Chr(203)
StopCode = Chr(204)
StringLeng = Len(DataToEncode)
For I = 1 To StringLeng Step 2
    'Get the value of each number pair
    CurrentChar = (Mid(DataToEncode, I, 2))
    'Get the ASCII value of CurrentChar according to the chart by adding to the value
    If CurrentChar < 94 Then DataToPrint = DataToPrint & Chr(CurrentChar + 33)
    If CurrentChar > 93 Then DataToPrint = DataToPrint & Chr(CurrentChar + 103)
Next I
'Print the barcode
Printable_string = StartCode + DataToPrint + StopCode
Printer.FontSize = 20
Printer.Font = "IDAutomationI25M"
Printer.Print Printable_string
'print the human readable text below the barcode
Printer.FontSize = 12
Printer.Font = "Times New Roman"
Printer.Print DataToEncode

After you order an Interleaved 2 of 5 Font Advantage Package License, you will receive our fully functional Interleaved 2 of 5 barcode font set with rights to use the font automation tools and source code.  You may also wish to do the following:

• Read about the quality of our fonts.

Make sure your product is properly licensed. Software audits are performed internationally by several organizations. Software copyright violators are fined up to $250,000 per violation and face up to 5 years imprisonment.

Platform : Windows 98 or above, MAC, UNIX

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The X dimension (X is the width of the narrow bar) of our Interleaved 2 of 5 font is listed below for various point sizes. The narrow to wide ratio is 2.75 to 1 which is recommended by international standards. 

Our Interleaved 2 of 5 fonts have been specially designed to be able to produce dependable and scannable barcodes when printed at all point sizes. With a 600 DPI laser, the Interleaved 2 of 5 font can be printed as small as 6 points if the scanner supports it. We have been able to dependably scan our Interleaved 2 of 5 font printed at 6 points with the Intermec 1800 CCD scanner.

Twelve different versions of the Interleaved 2 of 5 barcode fonts are provided to support human readable versions and different width and height requirements.  Fonts with the letter "H" in the font name are "human readable" versions. The last characters in the Interleaved 2 of 5 barcode font name determines the height of the barcode, with the shortest being "XS" and the tallest being "XXL". Because each single font can be printed at various point sizes, there are several combinations of heights and widths that can be produced.  (click here to view font names prior to July, 2003)

Barcode Fonts Packages for Organizations and Individuals

Please note that you can  purchase Barcode, MICR and OCR Font Advantage Package ( $299.95) - includes Barcode 39, Code 128, UCC-128, Interleaved 2 of 5, Industrial 2 of 5, MICR E-13B, CMC-7, POSTNET, PLANET, RM4SCC, OCR-A, OCR-B, Codabar, MSI / Plessy, Code 11, Code 25, UPC-A, EAN-8, EAN-13, EAN-14 and Code 93.

Please note that you can also purchase Universal Barcode Advantage Package - $199.95 that supports AIM USS Code 128, UCC-128, EAN-128, Barode 39, Interleaved 2 of 5, USPS Postnet, Planet, MSI and Codabar.

Or you can purchase  TrueType Barcode Font Advantage Package - $199.95
This package includes easy to install executable files for installing TrueType versions of our Code 39, Extended Code 39, Code 128, UPC-EAN, Codabar, Interleaved 2 of 5, Postnet, Planet, MICR E-13B, CMC-7, OCR-A, OCR-B and EZ Barcode font packages.

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