Update Active Directory Thumbnail Photo for All Users Without a Pic to Show Their Initials

We recently upgraded to Lync 2015 (aka Skype for Business). One feature which frustrated me was the group conversations; you can either see people’s names; in which case they’re listed in such a way as to use up a large amount of screen space, or you can see people’s photos/thumbnails, which is great except when most people don’t have their photo associated with their account.

To resolve this quickly I came up with the below script which:

• Gets all AD users under a given OU / SearchBase
• Filters for those without a thumbnail photo associated
• Determines the users’ initials
• Creates a JPG of their initials
• Assigns this JPG as their thumbnail image

Thus giving an easier way to tell who you’re talking to until they get around to uploading a photo.

NB: The below script is currently untested as I don’t have sufficient rights to update AD / will have to wait for our infrastructure team to assist there… but those parts that I could test have been tested.

Add-Type -AssemblyName System.Drawing
Add-Type -AssemblyName System.IO
Add-Type -AssemblyName Microsoft.ActiveDirectory.Management
Import-Module ActiveDirectory

function Convert-InitialsToJpegImageByteArray {
    [CmdletBinding()]
    param (
        [Parameter(Mandatory = $true, ValueFromPipeline = $true)]
        [string]$Initials
        ,
        [Parameter(Mandatory = $false)]
        [int]$WidthInPixels = 96  #Ref https://technet.microsoft.com/en-gb/library/jj688150.aspx: decided not to go 648x648 just for text
        ,
        [Parameter(Mandatory = $false)]
        [int]$HeightInPixels = 96
        ,
        [Parameter(Mandatory = $false)]
        [System.Drawing.Font]$Font = (new-object System.Drawing.Font ('Proxima Nova Alt',32, [System.Drawing.FontStyle]::Bold))
        ,
        [Parameter(Mandatory = $false)]
        [System.Drawing.Color]$BackgroundColor = "#FF000434" #ARGB Colors
        ,
        [Parameter(Mandatory = $false)]
        [System.Drawing.Color]$ForegroundColor = "#FF0099D8"
    )
    process {

        [System.Drawing.Bitmap]$bmp = new-object System.Drawing.Bitmap ($widthInPixels, $heightInPixels)
        [System.Drawing.Brush]$BrushBg = (new-object System.Drawing.SolidBrush ($BackgroundColor))
        [System.Drawing.Brush]$brushFg = (new-object System.Drawing.SolidBrush ($ForegroundColor))

        [System.Drawing.Graphics]$graphics = [System.Drawing.Graphics]::FromImage($bmp) 
        $graphics.FillRectangle($brushBg,0,0,$bmp.Width,$bmp.Height) 
        $graphics.DrawString($initials,$font,$brushFg,15,18) 
        $graphics.Dispose() 

        [System.IO.MemoryStream]$stream = new-object System.IO.MemoryStream
        $bmp.Save($stream,[System.Drawing.Imaging.ImageFormat]::Jpeg)
        $stream.Close()
        $stream.ToArray()
        $stream.Dispose()

    }
}

function Get-AdUserInitials {
    [CmdletBinding()]
    param (
        [Parameter(Mandatory = $true, ValueFromPipeline = $true)]
        [Microsoft.ActiveDirectory.Management.ADUser]$User
    )
    process {
        #$User = Get-ADUser $Identity #we could do parameter sets to allow passing only an identity
        $User | select-object @{Name='User';Expression={$User}}, @{Name='Initials';Expression={("{0}{1}" -f ("{0}?" -f $_.GivenName)[0],("{0}?" -f $_.Surname)[0]).ToUpperInvariant()}}
    }
}

function Get-AdUsersWithNoThumbnail {
    [CmdletBinding()]
    param (
        [Parameter(Mandatory = $true, ValueFromPipeline = $true)]
        [string]$SearchBase
        ,
        [Parameter(Mandatory = $false)]
        [ValidateSet('Base','OneLevel','Subtree')]
        [string]$SearchScope = 'Subtree'
        ,
        [Parameter(Mandatory = $false)]
        [string]$Filter = {Enabled -eq $true}
    )
    process {
        get-aduser -filter {Enabled -eq $true} -SearchBase $SearchBase -SearchScope $SearchScope -Properties thumbnailPhoto | ?{!$_.thumbnailPhoto} 
    }
}


@('OU=UK,DC=myCompany,DC=com') `
| Get-AdUsersWithNoThumbnail `
| Get-AdUserInitials `
| %{
    $User = $_.User
    [byte[]]$Image = $_.Initials | Convert-InitialsToJpegImageByteArray 
    Set-Aduser $user -replace @{thumbnailPhoto=$Image}
}