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This filter can be used to add new fields to the General settings tab for individual PDFs. It's basically a Fields API and all validation, sanitising and saving is handled automatically for you.
$fields | array : An associative array that includes a breakdown of the field information. We go into more detail about what each field configuration setting does in our custom PDF configuration guide.
The following sample shows you how to add two new fields to the General tab of the contextual PDF settings pages:
The following snippet shows you how to change the label of an existing field:
This filter is located in the
Helper_Options_Fields::get_registered_fields() method of