| Linear barcodes |
|---|
2/5,Interleaved,ITF
Code 39
Code 93
Codabar, Codabar Monarch
EAN,JAN,ISBN,ISMN,ISSN,ISMN
UPC-A, UPC-E, UPC-Shipping
Code 128, EAN 128
SCC14, Shipping container code, (EAN/UCC-14,SCC-14)
SISAC
Code 11
PZN
MSI
SSCC
LOGMARS
Pharma code
Plessey
|
| PDF417, MicroPDF417, MacroPDF417.
PDF417 | MicroPDF417 | MacroPDF417
Introduction
Multirow, variable length symbology, high data capacity, error correction included.
Stacked symbology, can be read with linear scanners, laser or two dimensional scanners.
Capacity
- 1108 bytes
- 1850 characters
- 2710 digits
Large files can be encoded into a series of PDF417 symbols - names as Macro PDF417.
Major features of PDF417:
- Character set: All 128 ASCII characters, all 128 extended ASCII, 8 bit binary data
- Symbol size: 3 to 90 rows
- Bidirectional encoding: Yes
- Error correction level :0-no error correction to 8 - maximum correction level
- Additional level: Macro PDF417, Truncated PDF417, Global Label Identifier (GLI)
Symbol structure :
A typical PDF417 symbol contain 3 to 90 rows, each row consists from lrft to right :
- Leading quiet zone
- Start pattern
- Left row indicator
- 1 to 30 data symbol chracters
- Right row indicator
- Stop pattern
- Trailing quiet zone
Each symbol character can contain 0 - 928 values which is called "codewords".
Symbol character encodation:
- 4 bars and 4 spaces
- total 17 modules - this is name PDF417
- Each bar or space can be 1-6 modules in length
Row encoding:
Each row uses character patterns from single cluster : in sequence 0,3,6,0,3,6,0,3,6 ....
ClusterNumber=((RowNumber-1) mod 3)*3
Compaction mode:
- Three compaction modes
- Text compaction mode - alphanumerics and punctuation
- Binary compaction mode - all 8 bit chracters
- Numeric compaction mode - only digits - high density
- Symbol characters 900-928 are reserved for control purposes.
Global Label Identifier (GLI)
GLI 0 - correspondends to ISO 8859-1 character set.It is possible to encode data to other languages.
| Error correction level | Number of Error correction codewords |
| 0 | 2 |
| 1 | 4 |
| 2 | 8 |
| 3 | 16 |
| 4 | 32 |
| 5 | 64 |
| 6 | 128 |
| 7 | 256 |
| 8 | 512 |
MicroPDF417
Reduced version of PDF417, smaller, but smaller capacity. Number of error correction codewiords is fixed for each available row/column combination, from 7 to 50 codewords pre symbol.
Symbol size:
- Number of rows : 4 to 44
- Number of cols : 1,2,3 or 4
| Data encoding mode |
Maximum capacity |
| Text compaction | 250 characters |
| Numeric compaction | 366 characters |
| Byte compaction | 150 characters |
CW : Codeword, EC : Error correction codewords, RW : Number of non error codewords-really used codewords without error correction codewords
MicroPDF417 characteristics |
| Number of data columns | Number of rows | Total CW | Number of EC | % EC/CW | Max.data bytes | Max.aplha chars | Max. digits |
| 1 | 11 | 11 | 7 | 64 | 3 | 6 | 8 |
| 1 | 14 | 14 | 7 | 50 | 7 | 12 | 17 |
| 1 | 17 | 17 | 7 | 41 | 10 | 18 | 26 |
| 1 | 20 | 20 | 8 | 40 | 13 | 22 | 32 |
| 1 | 24 | 24 | 8 | 33 | 18 | 30 | 44 |
| 1 | 28 | 28 | 8 | 29 | 22 | 38 | 55 |
| |
| 2 | 8 | 16 | 8 | 50 | 8 | 14 | 20 |
| 2 | 11 | 22 | 9 | 41 | 14 | 24 | 35 |
| 2 | 14 | 28 | 9 | 32 | 21 | 36 | 52 |
| 2 | 17 | 34 | 10 | 29 | 27 | 46 | 67 |
| 2 | 20 | 40 | 11 | 28 | 33 | 56 | 82 |
| 2 | 23 | 46 | 13 | 28 | 38 | 64 | 93 |
| 2 | 26 | 52 | 15 | 29 | 43 | 72 | 105 |
| |
| 3 | 6 | 18 | 12 | 67 | 6 | 10 | 14 |
| 3 | 8 | 24 | 14 | 58 | 10 | 18 | 26 |
| 3 | 10 | 30 | 16 | 53 | 15 | 26 | 38 |
| 3 | 12 | 36 | 18 | 50 | 20 | 34 | 49 |
| 3 | 15 | 45 | 21 | 47 | 27 | 46 | 67 |
| 3 | 20 | 60 | 26 | 43 | 39 | 66 | 96 |
| 3 | 26 | 78 | 32 | 41 | 54 | 90 | 132 |
| 3 | 32 | 96 | 38 | 40 | 68 | 114 | 167 |
| 3 | 38 | 114 | 44 | 39 | 82 | 138 | 202 |
| 3 | 44 | 132 | 50 | 38 | 97 | 162 | 237 |
| |
| 4 | 4 | 16 | 8 | 50 | 8 | 14 | 20 |
| 4 | 6 | 24 | 12 | 50 | 13 | 22 | 32 |
| 4 | 8 | 32 | 14 | 44 | 20 | 34 | 49 |
| 4 | 10 | 40 | 16 | 40 | 27 | 46 | 67 |
| 4 | 12 | 48 | 18 | 38 | 34 | 58 | 85 |
| 4 | 15 | 60 | 21 | 35 | 45 | 76 | 111 |
| 4 | 20 | 80 | 26 | 33 | 63 | 106 | 155 |
| 4 | 26 | 104 | 32 | 31 | 85 | 142 | 208 |
| 4 | 32 | 128 | 38 | 30 | 106 | 178 | 261 |
| 4 | 38 | 152 | 44 | 29 | 128 | 214 | 331 |
| 4 | 44 | 176 | 50 | 28 | 150 | 250 | 366 |
|
|
| Supported environment |
|---|
Borland :
- Delphi Win32
- C++ Builder
- Delphi .NET
Microsoft :
- Visual C#.net
- ActiveX
- DLL libraries
|
Supported
report tools |
|---|
- Direct print
- Quick report
- ReportBuilder
- Ace Reporter
- Rave report
- Pragnaan report
- Fast report
|
| Another barcode, Delphi™ sites |
|---|
|
|
371-493-459
