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Five anchors and one barcode are sufficient to unambiguously identify and match the template, unless you plan
to process other documents with an identical arrangement of anchors in the same stream.
4.3.3.1. Peculiarities of barcodes
If a barcode is used as an identifier, then it is an anchor barcode and therefore a static element. Such
barcodes must be created in Static elements mode. The Properties dialog box for such a barcode contains
two tabs: General and Recognition
If you plan to extract data from a barcode, such a barcode is a data field and must be created in Field
marking mode. The Properties dialog box of such a barcode contains all tabs typical of data fields,
namely General, Data Type, Recognition, Verification, and Rules. The value of such a barcode will
be recognized and, depending on the settings, sent to verification.
4.3.4. Field properties
It is very important that field properties are specified correctly. Field properties affect the quality of
recognition and determine if the values of the field are to be exported and sent to the verification
operator. Certain properties are particularly important for data recognition. A good example is the type
of marking of a text field. You must specify this property correctly so that the marking that is not
removed during scanning is separated from the characters. If you do so, the recognition result will
contain only the text which was entered in the field, and no excess objects will be captured.
If field properties are specified correctly, the results of data recognition will be very good and no extra
work for operators will be created. When you specify field properties, you can keep document
verification to a minimum because values will be automatically corrected.
When you have created a field of a certain type, default properties are assigned to the field. To change
the properties of an element in the dialog box, select Properties from the context menu of the element.
Every type of field has its specific list of properties.
4.3.4.1. Common field properties
The Properties dialog box of a field of any given type contains the General tab (Figure 6). On the
General tab, you can specify the name of the field (Name) and provide a description. When you create a
field, the program will generate a name for it automatically, based on the explanatory text closest to the
field. You can change this default name to any other name that is convenient. Caption is the name of the
field as it will be displayed in the data form. The field type is specified on this tab using the icon to the
right of the field name.
In addition, the following options can be selected on the General tab:
• Export field value. Clear this option if you do not need to export the value of this field. You
may need to clear this option, if, for example, the value of the field is used to get the value of a
calculated field (see the Rule-based checks
section) and only the final result has to be exported.
• Read only. Select this option to make the field read-only. The operator will not be able to change
its value. You can select this option for fields whose value must be calculated automatically,
with the help of a rule. For example, you can do so for a field where the sum or merged values of
other fields will be stored (see the Rule-based checks
section).
• Show in data form. Uncheck this option if do not want this field to appear in the Data Form.
• Cannot be blank. Check this option if the field must be filled out.