PDF Viewer SDK ActiveX 9.5
Platform : Windows 11, Windows 10, Windows 8, Vista, XP
It is PDF Viewer SDK, fast open PDF, support print a PDF, searching the text with C++ , C#, VB.Net , VB6, Delphi, Vfp, MS Access.
C# - How to Add Pdf Viewer to VS 2019 WinForm application from NuGet Packages
Step 1: Close the Visual Studio 2019.
Step 2: Run the Visual Studio 2019 as Administrator. Right click on your VS product and select Run as administrator.

Step 3: Select Visual C# or Visual Basic, Select Windows Form Application.

Step 4: Select your project in Solution Explorer, Right click the mouse, select Manage NuGet Packages...

Step 5: This brings up the NuGet Package Manager, enter "pdfviewercontrol" in search textbox , then select Viscomsoft.PDFViewerControl.WinForms.x86
package and click Install button.

Step 6: Now you will see DllRegisterServer in PDFViewer.ocx successful Message Box.

Step 7: Select Toolbox, select Components item, right click mouse button, select Choose Items...

Step 8: Select COM Components tab, select PDFViewer Control , click OK.
Step 9: Now the PDF Viewer SDK ActiveX Control's icon will display on Toolbox.

Step 10: Drag the PDF Viewer SDK ActiveX Control from toolbar to form.

Step 11: double click Form1.cs in the Solution Explorer, it will display the form , double click the form. Add the below code on Form1_Load
private void Form1_Load(object sender, EventArgs e)
{
axPDFViewer1.LoadPDFFile ("c:\\yourfolder\\your.pdf");
}
Step 12: Press F5 to Run the project.