pdfSortFormFields
Sort the form fields in row-major order.
void pdfSortFormFields(PDFHandle pdf, int mode)
Sorts the form fields by location, in row-major order, i.e., uppermost
row first, from left to right, and then proceeding down the page.
The mode
argument is currently unused and should be set
to zero.
C:
pdfSortFormFields(pdf, 0);