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C# .NET PDF form filling library
C# .NET PDF form filling library

Documentation

Benefits / Features:

PDFTron SDK benefits include:
Fill PDF Forms
Read PDF form field values
PDF form field flattening
Support for all form field properties and appearances
Support for encrypted PDF forms
Support for FDF (Forms Data Format)
Import FDF to PDF
Export FDF from PDF
Forms templating
Form field name management
Create new form fields
Support for JavaScript calculation in forms

Get Started

Import form data into a PDF

To import XFDF into FDF, then merge data from FDF into PDF.

Export form data from a PDF

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

Create new form fields and widget annotations

To create new form fields and widget annotations within a new document.

Fill form fields

To modify values for existing form fields.

Form flattening

To flatten form fields in a PDF document.

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