PowerShell

Change the Filename of an Attachment

Demonstrates the Chilkat Email.SetAttachmentFilename method, which changes the filename of the attachment at a given zero-based index. This example adds an attachment and renames it, printing the filename before and after.

Background: The attachment filename is what a recipient sees and what most clients suggest when saving the file. Renaming it is handy when the original name is unclear, unsafe, or generic — for example giving a machine-generated tmp12345 a meaningful name like invoice.pdf before sending.

Chilkat PowerShell Downloads

Download Chilkat for PowerShell

PowerShell

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

$success = $false

#  Demonstrates the SetAttachmentFilename method, which changes the filename of the
#  attachment at the given zero-based index.

$email = New-Object Chilkat.Email
$email.Subject = "Set attachment filename"

$email.AddStringAttachment("oldname.txt","Some notes.")
$("Filename before: " + $email.GetAttachmentFilename(0))

#  Change the filename of the first attachment (index 0).
$success = $email.SetAttachmentFilename(0,"newname.txt")
if ($success -eq $false) {
    $($email.LastErrorText)
    exit
}

$("Filename after: " + $email.GetAttachmentFilename(0))