(PowerShell) Convert Embedded HTML Images to Multipart/Related CID References

Demonstrates how to convert HTML images that are inline/embedded within the HTML to CID references to multipart/related MIME parts.

Note: This example requires Chilkat v9.5.0.78 or greater.

Chilkat .NET Downloads

Chilkat .NET Assemblies

Add-Type -Path "C:\chilkat\ChilkatDotNet47-9.5.0-x64\ChilkatDotNet47.dll"

# This example assumes the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.

# This example converts the following email with image data embedded directly in the HTML,
# to the MIME shown at the bottom of this page.
# If the HTML contains multiple embedded images, the call to email.ConvertInlineImages will convert all of them.

# MIME-Version: 1.0
# Date: Tue, 30 Apr 2019 11:36:34 +0200
# Message-ID: <E5DB5F8A65D671FB4822B22F5309411838F2FC93@PC0VDL0W013>
# Content-Type: text/html; charset="windows-1252"
# Content-Transfer-Encoding: quoted-printable
# X-Priority: 3 (Normal)
# From: <admin@chilkatsoft.com>
# To: Matt <matt@chilkat.io>
# Subject: Test
# 
# <html xmlns=3D"http://www.w3.org/1999/xhtml">
# <body><p>
# <img src=3D"data:image/jpeg;base64,/9j/4AAQSkZJRgABAQEA3ADcAAD/2=
# wBDAAIBAQEBAQIBAQECAgICAgQDAgICAgUEBAMEBgUGBgYFBgYGBwkIBgcJBwYGCAsICQoKCgoK=
# BggLDAsKDAkKCgr/2wBDAQICAgICAgUDAwUKBwYHCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgo=
# ...
# 4zzS3ww+5/8AyR//2Q=3D=3D" width=3D"58" height=3D"66" alt=3D"" style=3D"bord=
# er-width:0px;" /></body>
# </html>

$email = New-Object Chilkat.Email
$success = $email.LoadEml("qa_data/eml/embedded_html_image.eml")

$email.ConvertInlineImages()
$($email.GetMime())

# The MIME after moving the image data to a separate MIME sub-part:

# MIME-Version: 1.0
# Date: Tue, 30 Apr 2019 11:36:34 +0200
# Message-ID: <E5DB5F8A65D671FB4822B22F5309411838F2FC93@PC0VDL0W013>
# Content-Type: multipart/related; boundary="------------020808080005060904000806"
# X-Priority: 3 (Normal)
# From: <admin@chilkatsoft.com>
# To: Matt <matt@chilkat.io>
# Subject: Test
# 
# --------------020808080005060904000806
# Content-Type: text/html; charset=windows-1252
# Content-Transfer-Encoding: quoted-printable
# 
# <html xmlns=3D"http://www.w3.org/1999/xhtml">
# </head></head><body><p>
# <img src=3D"cid:CID-1f73052c-32a7-4abb-8e9d-0afb58c17eed@CHILKATSLICE" widt=
# h=3D"58" height=3D"66" alt=3D"" style=3D"border-width:0px;" /></body>
# </html>
# 
# 
# 
# --------------020808080005060904000806
# Content-Type: image/jpeg; name="image_95EA3073134C.jpeg"
# Content-Transfer-Encoding: base64
# Content-ID: <CID-1f73052c-32a7-4abb-8e9d-0afb58c17eed@CHILKATSLICE>
# 
# /9j/4AAQSkZJRgABAQEA3ADcAAD/2wBDAAIBAQEBAQIBAQECAgICAgQDAgICAgUEBAMEBgUGBgYF
# BgYGBwkIBgcJBwYGCAsICQoKCgoKBggLDAsKDAkKCgr/2wBDAQICAgICAgUDAwUKBwYHCgoKCgoK
# ...
# 5bmGF7e42pOwUxrFNEQOcLGw6vX2Yv7NfxbWLYfB67s84vrf/wCLoor8r424ZwGYZkqlSUk+VLRr
# /Jn2mS8QYzC0Woxi9eqf+aGr+zX8XUyW8K9/+f8Ag/8AjlO/4Zs+Ln/Qqf8Ak/b/APxyiivkXwPl
# H88/vj/8ifUR4zzS3ww+5/8AyR//2Q==
# 
# --------------020808080005060904000806--