Running pdfChip with the parameter ./pdfChip --list-barcodes on the command line:

./pdfChip --list-barcodes

will output a list of all the barcodes supported by pdfChip. When using the TYPE value to request a barcode through the <param> entry in a barcode <object> make sure to copy everything between the quotes, leaving space characters intact.

Example output from using ./pdfChip --list-barcodes:

ID  TYPE                         Data                 
 1  "Code 11"                    "123456"             
 2  "Code 2 of 5 Standard"       "123456"             
 3  "Code 2 of 5 Interleaved"    "123456"             
 4  "Code 2 of 5 IATA"           "123456"             
 5  "Code 2 of 5 Matrix"         "123456"             
 6  "Code 2 of 5 DataLogic"      "123456"             
 7  "Code 2 of 5 Industry"       "123456"             
 8  "Code 39"  "ABCDEF"             
 ...

Embedding happens using an <object> tag that has to be formatted as follows:

<object type="application/barcode">
    <param name="type" value="➔insert name of desired barcode type">
    <param name="data" value="➔insert value to be encoded by the barcode">
</object>

No barcode validation takes place, so a wrong value (e.g. incorrect checksum) for the data will result in an invalid barcode (for some barcodes the checksum will be computed automatically if left out from the provided value). Size and layout of the barcode can be adjusted using the usual HTML or CSS parameters. In addition the size and appearance of barcodes can also be controlled by using one or several of the optional parameters described below.

To view the supported types of barcodes, please go to. 

The values provided in the "Data" column roughly indicate what kind of data can be represented by the respective barcode type. For full details please see the Barcode Reference in the Annex of the Reference Manual.

• ABCabc: lower and uppercase characters and digits; may also support punctuation characters or even arbitray binary data
• ABCDEF: uppercase characters and digits; may also support some punctuation characters
• 123456: digits only; various rules about maximum number of digits and constraints on some of digits may apply

pdfChip supports various additional optional parameters that provide more fine grained control over the size, appearance and other aspects of 1D and 2D codes. Not all parameter are meaningful for all types of 1D and 2D codes – for full details see the Barcode Reference in the Annex of this Reference Manual.

An example for using optional parameters for the generation of an "EAN 13" code is shown below:

<object type="application/barcode">
	<param name="data" value="123456789012">
	<param name="type" value="EAN 13">
	<param name="modulewidth" value="0.33mm">
	<param name="barwidthreduction" value="10%">
	<param name="textplacement" value="none">
</object>

Provides control over how strings are formatted. For more details see section 4.6 Format in the Barcode Reference.

Usage:

<param name="format" value="A##B###C&">

Provides control over the Module width. For more details see section 4.2 Module Width in the Barcode Reference.

Usage:

<param name="modulewidth" value="0.33mm">
<!-- **-1**, units: mm, ", mils, **pixel**-->

Providing the horizontal resolution triggers an optimisation of the module width for best possible consistency of bars and gaps in the barcode and thus the barcode readability. For more details see section 4.2 Module Width in the Barcode Reference.

Usage:

<param name="hres" value="600">
<!-- **-1**-->

Providing the vertical resolution triggers an optimisation of the module width for best possible consistency of bars and gaps in the barcode and thus the barcode readability. For more details see section 4.2 Module Width in the Barcode Reference.

Usage:

<param name="vres" value="600">
<!-- **-1**-->

Provides control over the positioning of the human readable text relative to the barcode proper. Applies only to 1D codes.

Usage:

<param name="textplacement" value="none"><!-- above, **below**, none-->

Provides control over the distance of the human readable text from the barcode proper. Applies only to 1D codes.

Usage:

<param name="textdistance" value="0.5mm"><!-- **-1**, units: mm, ", mils, **pixel**-->

Provides control over the presence and position of bearer bars. For more details see section 3.3 Barcode Glossary, Bearer Bars, 6.1.43 ITF-14 and 6.1.66 UPC SCS (Shipping Container Symbols)in the Barcode Reference.

Usage:

<param name="bearerbars" value="topbottom"><!-- **none**, top, bottom, topbottom-->

Provides control over the width of bearer bars. For more details see section 3.3 Barcode Glossary, Bearer Bars, 6.1.43 ITF-14 and 6.1.66 UPC SCS (Shipping Container Symbols) in the Barcode Reference.

Usage:

<param name="bearerwidth" value="0.5mm"><!-- **-1**, units: mm, ", mils, **pixel**-->

Provides control over the notch height. For certain types of barcodes like e.g. "EAN 13", some of the bars are typically longer than the rest of the bars. This parameter provides control over by how much they will be longer.

Usage:

<param name="notchheight" value="0.5mm"><!-- **-1**, units: mm, ", mils, **pixel**-->

Provides control over the bar width reduction. For more details see section 4.3 Bar Width Reduction (Pixel Shaving) in the Barcode Reference.

Usage:

<param name="barwidthreduction" value="1%"><!-- **0**, units: %, mm, ", mils, **pixel**-->

Provides control over the quiet zone on the left. For more details see section 4.4 Quiet Zone in the Barcode Reference.

Usage:

<param name="quietzoneleft" value="0.5"><!-- **0**-->

Provides control over the quiet zone on the right. For more details see section 4.4 Quiet Zone in the Barcode Reference.

Usage:

<param name="quietzoneright" value="0.5"><!-- **0**-->

Provides control over the quiet zone at the top. For more details see section 4.4 Quiet Zone in the Barcode Reference.

Usage:

<param name="quietzonetop" value="0.5"><!-- **0**-->

Provides control over the quiet zone at the bottom. For more details see section 4.4 Quiet Zone in the Barcode Reference.

Usage:

<param name="quietzonebottom" value="0.5"><!-- **0**-->

Provides control over the unit used for controlling the quiet zone. For more details see section 4.4 Quiet Zone in the Barcode Reference.

Usage:

<param name="quietzoneunit" value="X"><!-- **X**, mm, ", mils, pixel. X: multiples of module width-->

For some types of 1D and 2D codes it is possible to encode binary data. Where such binary data includes non-printable characters, such characters need to be provided in an escaped fashion. Several escaping mechanisms can be used. For example, "\h0A" represents the hexadecimal value of "0x0A". Es the escaping mechanisms make use of the backslash character, any occurrence of the actual backslash character must be written as a double backslash ("\\") to avoid unwanted un-escaping.