如何通过PowerShell脚本实现无边距打印？

问题描述 #

我使用修改版PowerShell打印脚本打印图片，但始终无法实现无边距打印。已尝试将边距设为0、自定义纸张尺寸、向打印机发送超出允许尺寸的图片，均未奏效，请问如何启用无边距打印标志？

原脚本如下：

$imageName = 'C:\image.png'
$printer = "Canon SELPHY CP1500"
$fitImageToPaper = $true

 trap { break; }

 # 加载System.Drawing程序集
 [void][System.Reflection.Assembly]::LoadWithPartialName("System.Drawing")

 $bitmap = $null

 $doc = new-object System.Drawing.Printing.PrintDocument
 $doc.DefaultPageSettings.Margins.Left = 0
$doc.DefaultPageSettings.Margins.Right = 0
$doc.DefaultPageSettings.Margins.Top = 0
$doc.DefaultPageSettings.Margins.Bottom = 0

 Write-Host $doc.DefaultPageSettings.PaperSize
 if ($printer -ne "") {
  $doc.PrinterSettings.PrinterName = $printer
 }
 
 $doc.DocumentName = [System.IO.Path]::GetFileName($imageName)

 $doc.add_BeginPrint({
  Write-Host "==================== $($doc.DocumentName) ===================="
 })
 
 $doc.add_EndPrint({
  if ($bitmap -ne $null) {
   $bitmap.Dispose()
   $bitmap = $null
  }
  Write-Host "xxxxxxxxxxxxxxxxxxxx $($doc.DocumentName) xxxxxxxxxxxxxxxxxxxx"
 })
 
 $doc.add_PrintPage({
  Write-Host "Printing $imageName..."
 
  $g = $_.Graphics
  $pageBounds = $_.PageBounds
  $img = new-object Drawing.Bitmap($imageName)
  
  $adjustedImageSize = $img.Size
  $ratio = [double] 1;
  
  if ($fitImageToPaper) {
   $fitWidth = [bool] ($img.Size.Width > $img.Size.Height)
   if (($img.Size.Width -le $_.MarginBounds.Width) -and
    ($img.Size.Height -le $_.MarginBounds.Height)) {
    $adjustedImageSize = new-object System.Drawing.SizeF($img.Size.Width, $img.Size.Height)
   } else {
    if ($fitWidth) {
     $ratio = [double] ($_.MarginBounds.Width / $img.Size.Width);
    } else {
     $ratio = [double] ($_.MarginBounds.Height / $img.Size.Height)
    }
    
    $adjustedImageSize = new-object System.Drawing.SizeF($img.Size.Width, $img.Size.Height)
   }
  }

  $recDest = new-object Drawing.RectangleF($pageBounds.Location, $adjustedImageSize)
  $recSrc = new-object Drawing.RectangleF(0, 0, $img.Width, $img.Height)
  
  $_.Graphics.DrawImage($img, $recDest, $recSrc, [Drawing.GraphicsUnit]"Pixel")

  $_.HasMorePages = $false;
 })
 
 $doc.Print()

解决方案 #

单纯设置边距为0无法触发打印机的无边距模式，需要同时配置打印机驱动的特定参数，并调整绘图区域到纸张物理边界。

修改后的脚本 #

$imageName = 'C:\image.png'
$printer = "Canon SELPHY CP1500"
$fitImageToPaper = $true

trap { break; }

# 加载必要程序集
[void][System.Reflection.Assembly]::LoadWithPartialName("System.Drawing")
[void][System.Reflection.Assembly]::LoadWithPartialName("System.Windows.Forms")

$doc = New-Object System.Drawing.Printing.PrintDocument
$doc.PrinterSettings.PrinterName = $printer

# 启用无边距打印核心设置
if ($doc.PrinterSettings.SupportsCustomPageSettings) {
    # 强制设置四边边距为0
    $doc.DefaultPageSettings.Margins = New-Object System.Drawing.Printing.Margins(0,0,0,0)
    # 同步打印机默认页设置的边距
    $doc.PrinterSettings.DefaultPageSettings.Margins = New-Object System.Drawing.Printing.Margins(0,0,0,0)
    # 绑定打印对话框配置，确保驱动识别无边距模式
    $printDialog = New-Object System.Windows.Forms.PrintDialog
    $printDialog.PrinterSettings = $doc.PrinterSettings
    $printDialog.PrinterSettings.DefaultPageSettings.Margins = New-Object System.Drawing.Printing.Margins(0,0,0,0)
    # 匹配打印机当前使用的纸张尺寸（无边距仅对特定尺寸生效）
    $doc.DefaultPageSettings.PaperSize = $doc.PrinterSettings.DefaultPageSettings.PaperSize
}

$doc.DocumentName = [System.IO.Path]::GetFileName($imageName)

$doc.add_BeginPrint({
    Write-Host "==================== $($doc.DocumentName) ===================="
})

$doc.add_EndPrint({
    Write-Host "xxxxxxxxxxxxxxxxxxxx $($doc.DocumentName) xxxxxxxxxxxxxxxxxxxx"
})

$doc.add_PrintPage({
    Write-Host "Printing $imageName..."
    $img = New-Object Drawing.Bitmap($imageName)
    $g = $_.Graphics
    
    # 使用纸张物理边界而非边距区域进行绘制
    $pageBounds = $_.PageBounds

    # 计算缩放比例，让图片完全覆盖纸张
    $scaleWidth = [double]$pageBounds.Width / $img.Width
    $scaleHeight = [double]$pageBounds.Height / $img.Height
    $scale = [Math]::Max($scaleWidth, $scaleHeight)
    
    $newWidth = $img.Width * $scale
    $newHeight = $img.Height * $scale
    
    # 居中绘制，确保填满整个纸张
    $x = ($pageBounds.Width - $newWidth) / 2
    $y = ($pageBounds.Height - $newHeight) / 2
    
    $recDest = New-Object Drawing.RectangleF($x, $y, $newWidth, $newHeight)
    $recSrc = New-Object Drawing.RectangleF(0, 0, $img.Width, $img.Height)
    
    $g.DrawImage($img, $recDest, $recSrc, [Drawing.GraphicsUnit]"Pixel")
    
    $img.Dispose()
    $_.HasMorePages = $false
})

$doc.Print()

关键注意事项 #

• 硬件支持确认：先确认Canon SELPHY CP1500本身支持无边距打印，该型号仅对特定尺寸相纸（如4×6英寸）生效。
• 驱动预配置：先在打印机属性的图形界面中手动开启一次无边距打印，部分驱动需要先确认后才能通过脚本生效。
• 纸张匹配：确保打印机内装的纸张尺寸与脚本中设置的一致，无边距模式不支持所有纸张尺寸。

内容的提问来源于stack exchange，提问作者Manolis