TextToOutlines.vb
''
'' This code is part of GrapeCity Documents for PDF samples.
'' Copyright (c) GrapeCity, Inc. All rights reserved.
''
Imports System.IO
Imports System.Drawing
Imports GrapeCity.Documents.Pdf
Imports GrapeCity.Documents.Pdf.AcroForms
Imports GrapeCity.Documents.Pdf.Graphics
Imports GrapeCity.Documents.Drawing
Imports GrapeCity.Documents.Text

'' This sample shows how to convert all text in an existing PDF to glyph outlines.
'' The resulting PDF will look exactly Like the original, but all glyphs in it
'' will be rendered as graphics paths. This can be used to manipulate the paths,
'' Or to make sure it will be impossible to copy Or search the text.
'' Note that the resulting documents will have no fonts (see for example 
'' the Document Properties | Fonts tab in GcPdfViewer).
'' The original PDF used by this sample was generated by Wetlands.
Public Class TextToOutlines
    Function CreatePDF(ByVal stream As Stream) As Integer
        Dim doc = New GcPdfDocument()
        Using fs = File.OpenRead(Path.Combine("Resources", "PDFs", "Wetlands.pdf"))
            '' Load the source PDF into a temp document:
            Dim srcDoc = New GcPdfDocument()
            srcDoc.Load(fs)
            '' Draw all pages of the source document on pages of the New PDF:
            For Each srcPage In srcDoc.Pages
                Dim page = doc.Pages.Add(srcPage.Size)
                '' Setting Graphics.DrawTextAsPath to true makes all glyphs draw as graphics paths
                '' instead of rendering text using fonts:
                page.Graphics.DrawTextAsPath = True
                '' Draw the source page on the target:
                srcPage.Draw(page.Graphics, srcPage.Bounds)
            Next
            '' Done:
            doc.Save(stream)
            Return doc.Pages.Count
        End Using
    End Function
End Class