Some test text!

menu

Import/export annotations

A documents entire set of annotations can be imported or exported using XFDF with the following guides. To import/export a partial set of annotations, please see annotation sync

Export annotations

To extract data from PDF to FDF, then export FDF as XFDF

PDFDoc doc = new PDFDoc(filename);

// Extract annotations to FDF.
// Optionally use e_both to extract both forms and annotations
FDFDoc doc_fields = doc.fdfExtract(PDFDoc.e_annots_only);
doc_fields.setPDFFileName(filename);
doc_fields.save(output_fdf_filename);

// Export annotations from FDF to XFDF.
doc_fields.saveAsXFDF(output_xfdf_filename);

// Optionally write XFDF to a string
String XFDF_string = doc_fields.saveAsXFDF();
Disable annotation auto-save
Annotation updates by default will automatically save to the PDF. Set PdfViewCtrlTabFragment::setSavingEnabled to false to disable auto-save.

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)

Get the answers you need: Support

close

Free Trial

Get unlimited trial usage of PDFTron SDK to bring accurate, reliable, and fast document processing capabilities to any application or workflow.

Select a platform to get started with your free trial.

Unlimited usage. No email address required.