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README.md

Forms and Annotations

This group contains samples that show how to add interactive elements like annotations and controls to your PDF documents and how to fill forms.

Text annotations

This sample shows how to add text annotations (sticky notes) to your PDF document using PdfPage.AddTextAnnotation(..) method.

Button with image

This sample shows how to create buttons with images in PDF documents.

Buttons

This sample shows how to use buttons in your PDF document.

Checkboxes

This sample shows how to use checkboxes in your PDF document.

Comboboxes

This sample shows how to use combo boxes in your PDF document.

Export FDF data

This sample shows how to export filled form data from PDF document into a Forms Data Format (FDF) file.

Fill existing form

This sample shows how to fill forms in existing PDF documents.

Find control by name

This sample shows how to access an existing PDF control with given name using PdfDocument.GetControl method.

Flatten form fields

This sample shows how to flatten form fields in a PDF document.

Import FDF data

This sample shows how to populate a PDF form with data from a Forms Data Format (FDF) file.

Listboxes

This sample shows how to use list boxes in your PDF document.

Numeric text fields

This sample shows how to create text fields that allow only digits to be input.

Radio buttons

This sample shows how to use radio buttons in your PDF document.

Read combo box items

This sample shows how to read items of combo boxes in a PDF document.

Remove widgets

This sample shows how to remove widgets from your PDF documents.

Alignment in text fields

This sample shows how to align text in PDF document text fields.

Text fields

This sample shows how to add text fields to your PDF document using PdfPage.AddTextBox(..) method.

Text markup annotations

This sample shows how to add text markup annotations (highlight, strikeout, underline) to your PDF document.