PDF Annotations Library for UWP

PSPDFKit for Windows is a library for creating, removing, and editing PDF annotations. It offers developers a robust API for programmatic annotation management, as well as a beautiful UI for working with 17 PDF annotation types.

PSPDFKit SDKs are deployed in some of the world’s most popular applications, such as those made by Autodesk, Disney, DocuSign, Dropbox, IBM, and Lufthansa.

Key Capabilities

• 17 annotation types – Highlight, text, ink, note, shapes, and more

• Create, edit, remove – Programmatically or by using the UI

• Import and export – Manage annotations in XFDF or JSON files

• Annotation events – Trigger workflows or automations

• Cloudy annotations – Cloudy border effect

• Customizable UI – Hide buttons, match your look & feel, and more

• Extendable – Add signing, editing, redaction, and more

Guides for Annotation

What Are Annotations?
Learn about the basics of PDF annotations

Supported Annotation Types
Learn about the types of annotations supported by PSPDFKit

Annotation Data Formats
Learn about using external files to manage annotations

Embed Annotations into the PDF
How to embed annotations into the PDF document

Save Annotations to an External Source
How to save annotations to external storage

Import and Export to/from Instant JSON
How to import/export annotations to/from Instant JSON

Import and Export to/from XFDF
How to import/export annotations to/from XFDF

Import and Export to/from a Database
How to import/export annotations to/from a database

Programmatic Creation, Editing, or Removal
How to programmatically create, edit, or remove annotations

Detect Changes to Annotations
How to detect annotation changes that originate from the UI

Disable Annotation Editing
How to disable the modification of individual annotations or types

Customize Appearance Streams
How to render existing appearance streams

Customize Color Presets
How to configure the default value for annotation properties

Stamp a Document
How to stamp a document programmatically

Flatten Annotations
How to flatten annotations and burn them into the PDF

Annotate on an Image
How to annotate a PNG, JPG, or TIFF

Image Document Specification
Learn how PNGs, JPGs, and TIFFs are annotated by PSPDFKit