Functions/Public/Set-PDFSingature.ps1
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using namespace iTextSharp.text using namespace iTextSharp.text.pdf using namespace System.IO Function Set-PDFSingature { [CmdletBinding()] Param( [Parameter(Mandatory = $true, ValueFromPipeline = $true)] [ValidateScript({ if (Test-Path ([Path]::Join($(Get-Location), $_))) { return $true } else { throw "Signature image not found" } if ($_.EndsWith('.pdf')) { return $true } else { throw "File extension must be .pdf" } })] [string]$PdfToSign, [Parameter(Mandatory = $true, ValueFromPipeline = $true)] [ValidateScript({ if (Test-Path ([Path]::Join($(Get-Location), $_))) { return $true } else { throw "Signature image not found" } if ($_.EndsWith('.png') -or $_.EndsWith('.jpg')) { return $true } else { throw "File extension must be .png or .jpg" } })] [string]$SignatureImage, [Parameter(Mandatory = $false, ValueFromPipeline = $true)] [int]$XPos = 130, [Parameter(Mandatory = $false, ValueFromPipeline = $true)] [int]$YPos = 50 ) Try { Add-Type -Path "$PSScriptRoot/dependencies/*.dll" $pdf = [PdfReader]::new("$(Get-Location)/$PdfToSign") $fs = [FileStream]::new("$(Get-Location)/$PdfToSign-signed.pdf", [FileMode]::Create) $stamper = [PdfStamper]::new($pdf, $fs) $stamper.AcroFields.AddSubstitutionFont([BaseFont]::CreateFont()) $content = $stamper.GetOverContent(1) $width = $pdf.GetPageSize(1).Width $image = [Image]::GetInstance("$(Get-Location)/$SignatureImage") $image.SetAbsolutePosition($width - $XPos, $YPos) $image.ScaleAbsolute(100, 30) $content.AddImage($image) $stamper.Close() $pdf.Close() $fs.Dispose() } Catch { Write-Host "Error: $($_.Exception.Message)" } } |