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Ruby / Guides / Export form data from PDF
To extract data from PDF to FDF, then export FDF as XFDF
doc = PDFDoc.new(filename) # Extract annotations to FDF. # Optionally use e_both to extract both forms and annotations doc_fields = doc.FDFExtract(PDFDoc::E_annot_only) #PDFDoc::E_forms_only # Export annotations from FDF to XFDF. doc_fields.SaveAsXFDF(output_xfdf_filename) # Optionally write XFDF to a string XFDF_string = doc_fields.SaveAsXFDF()
PDF Form Fill and Form Data Extraction
Full sample code which illustrates basic FDF merge/extract functionality and full support for FDF (Forms Data Format)
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