From LT13 to LT19 - Draw Text in Image

Please I need the correspond code for this from Leadtools 13 to 19, we use it to draw a Text in document that are unofficial
or please tell me how to implement this in Leadtools 19 using vb.net
The sample I had read using alpha blend gives me a file 100 times bigger than the original.
This are Black and White TIF documents
thanks a lot

'****Begins Here
Dim leadCOM As New LEADLib.LEAD

Dim iNoOfPages As Integer = -1
leadCOM.UnlockSupport(LEADLib.SupportLockConstants.L_SUPPORT_GIFLZW, L_KEY_GIFLZW)
leadCOM.UnlockSupport(LEADLib.SupportLockConstants.L_SUPPORT_TIFLZW, L_KEY_TIFLZW)
leadCOM.GetFileInfo(strFileName, iNoOfPages, 1)
iNoOfPages = leadCOM.InfoTotalPages()


iNoOfPages = leadCOM.InfoTotalPages()
For j As Integer = 1 To iNoOfPages
leadCOM.Load(strFileName, 0, j, 1)
leadCOM.
leadCOM.BitmapEnableTransparency = True
leadCOM.AutoRepaint = True
leadCOM.TextTop = 200
leadCOM.TextLeft = 100
leadCOM.TextAngle = -550
leadCOM.TextWidth = leadCOM.BitmapWidth
leadCOM.TextHeight = leadCOM.BitmapHeight
leadCOM.DrawPenWidth = 0
leadCOM.Font.Size = 300
leadCOM.Font.Bold = False
leadCOM.Font.Name = "Arena Outline"
leadCOM.DrawPersistence = True
leadCOM.DrawText("U N O F F I C I A L", 0)
leadCOM.ForceRepaint()
leadCOM.Save("c:\temporal\test.tif", LEADLib.FileConstants.FILE_CCITT_GROUP4, 1, 0, 1)
Next
leadCOM = Nothing

'********ends Here

Hello,

While this example is written in C#, it demonstrates how to watermark a multi-page file with text:
https://www.leadtools.com/support/forum/posts/m43686-HOW-TO--Add-Watermarks-to-Multi-page-Documents#post43686

This example uses our Bates Stamp functionality, specifically the AnnBatesStampComposer class:
https://www.leadtools.com/help/leadtools/v20/dh/abs/annbatesstampcomposer.html

If you are having any issues following our documentation pages, or the C# example linked above, using an online C# to VB converter may be beneficial.

Thanks,