ComponentOne Document Library for WinForms
PdfDocumentSource for WinForms

Document library offers C1PdfDocumentSource, a public class which provides PDF parsing and processing capabilities. C1PdfDocumentSource can be used directly to access PDF documents from code, or it can be assigned to the DocumentSource property of C1FlexViewer (supported on WinForms, WPF and UWP platforms), allowing the FlexViewer control to open arbitrary PDF documents.

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