Use .NET’s System.Drawing.Graphics.CopyFromScreen from PowerShell. It copies pixels from a screen rectangle into a bitmap, which you can save as PNG, JPEG, or another supported format. The script below captures the primary display, creates a timestamped PNG in your temporary folder, and releases its graphics resources even if saving fails.
Capture the primary display
Run this in Windows PowerShell or a PowerShell host that supports the Windows desktop APIs:
Add-Type -AssemblyName System.Windows.Forms
Add-Type -AssemblyName System.Drawing
$bounds = [System.Windows.Forms.Screen]::PrimaryScreen.Bounds
$bitmap = New-Object System.Drawing.Bitmap $bounds.Width, $bounds.Height
$graphics = [System.Drawing.Graphics]::FromImage($bitmap)
try {
$graphics.CopyFromScreen(
$bounds.Location,
[System.Drawing.Point]::Empty,
$bounds.Size
)
$path = Join-Path $env:TEMP ("screenshot-{0:yyyyMMdd-HHmmss}.png" -f (Get-Date))
$bitmap.Save($path, [System.Drawing.Imaging.ImageFormat]::Png)
Write-Output $path
}
finally {
$graphics.Dispose()
$bitmap.Dispose()
}The command prints the complete file path after a successful save. Open it with Invoke-Item $path, or copy it elsewhere with Copy-Item. PNG is lossless and a sensible default for text, application windows, and diagrams.
Microsoft documents CopyFromScreen as performing “a bit-block transfer of color data, corresponding to a rectangle of pixels, from the screen to the drawing surface of the Graphics.” The bitmap is that drawing surface; the source point and size determine which pixels are copied.
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What each part of the script does
Load the Windows assemblies
System.Windows.Forms supplies screen information such as PrimaryScreen.Bounds. System.Drawing supplies Bitmap, Graphics, and image encoders. Add-Type loads those assemblies for the current session.
Choose a source rectangle
$bounds.Location is the upper-left source coordinate and $bounds.Size is its width and height. The destination point is Point.Empty, so pixels are written from the top-left of the new bitmap.
Save and clean up
Bitmap.Save writes the image using the selected encoder. The finally block disposes both .NET objects, preventing handles and memory from accumulating during repeated captures.
Capture a selected rectangle
For a fixed region, replace the screen bounds with explicit coordinates and dimensions. Coordinates are desktop pixels; the origin and any negative values depend on your monitor arrangement.
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$x = 100
$y = 80
$width = 1200
$height = 700
$bitmap = New-Object System.Drawing.Bitmap $width, $height
$graphics = [System.Drawing.Graphics]::FromImage($bitmap)
try {
$graphics.CopyFromScreen(
$x,
$y,
0,
0,
[System.Drawing.Size]::new($width, $height)
)
$path = Join-Path $env:USERPROFILE 'Picturesregion.png'
$bitmap.Save($path, [System.Drawing.Imaging.ImageFormat]::Png)
$path
}
finally {
$graphics.Dispose()
$bitmap.Dispose()
}Make sure the rectangle lies within the visible desktop area. An invalid or inaccessible source can cause a .NET or Windows graphics exception rather than producing a useful image.
Capture every monitor in the virtual desktop
To include all attached displays, select the screen object marked as the primary screen and combine the monitor rectangles into one virtual bounding rectangle. This preserves negative coordinates when a monitor sits left or above the primary display.
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Add-Type -AssemblyName System.Windows.Forms
Add-Type -AssemblyName System.Drawing
$screens = [System.Windows.Forms.Screen]::AllScreens
$left = ($screens | ForEach-Object { $_.Bounds.Left } | Measure-Object -Minimum).Minimum
$top = ($screens | ForEach-Object { $_.Bounds.Top } | Measure-Object -Minimum).Minimum
$right = ($screens | ForEach-Object { $_.Bounds.Right } | Measure-Object -Maximum).Maximum
$bottom = ($screens | ForEach-Object { $_.Bounds.Bottom } | Measure-Object -Maximum).Maximum
$width = $right - $left
$height = $bottom - $top
$bitmap = New-Object System.Drawing.Bitmap $width, $height
$graphics = [System.Drawing.Graphics]::FromImage($bitmap)
try {
$graphics.CopyFromScreen(
[System.Drawing.Point]::new($left, $top),
[System.Drawing.Point]::Empty,
[System.Drawing.Size]::new($width, $height)
)
$path = Join-Path $env:USERPROFILE 'Picturesvirtual-desktop.png'
$bitmap.Save($path, [System.Drawing.Imaging.ImageFormat]::Png)
$path
}
finally {
$graphics.Dispose()
$bitmap.Dispose()
}The resulting image is rectangular. If the monitors have different sizes or positions, unused areas between them can appear as background-colored gaps. Test the bounds on the exact multi-monitor and DPI configuration you support.
Choose PNG, JPEG, or another format
Pass a different encoder to Save and use a matching extension:
| Format | PowerShell expression | Use it when |
|---|---|---|
| PNG | [System.Drawing.Imaging.ImageFormat]::Png |
You need sharp text and lossless output. |
| JPEG | [System.Drawing.Imaging.ImageFormat]::Jpeg |
A smaller photographic image is more important than perfect text. |
| BMP | [System.Drawing.Imaging.ImageFormat]::Bmp |
You need an uncompressed bitmap and can accept a large file. |
For JPEG quality control, create an encoder and set its quality property rather than relying on the default. PNG generally avoids that extra configuration.
Run a reusable screenshot function
A function makes repeated or scheduled captures easier and lets callers choose the output path and rectangle.
function Save-ScreenCapture {
param(
[Parameter(Mandatory)] [string] $Path,
[int] $X = $null,
[int] $Y = $null,
[int] $Width = $null,
[int] $Height = $null
)
Add-Type -AssemblyName System.Windows.Forms
Add-Type -AssemblyName System.Drawing
if ($null -eq $Width -or $null -eq $Height) {
$source = [System.Windows.Forms.Screen]::PrimaryScreen.Bounds
$X = $source.Left; $Y = $source.Top
$Width = $source.Width; $Height = $source.Height
}
$folder = Split-Path -Parent $Path
if ($folder -and -not (Test-Path $folder)) {
New-Item -ItemType Directory -Path $folder -Force | Out-Null
}
$bitmap = New-Object System.Drawing.Bitmap $Width, $Height
$graphics = [System.Drawing.Graphics]::FromImage($bitmap)
try {
$graphics.CopyFromScreen($X, $Y, 0, 0,
[System.Drawing.Size]::new($Width, $Height))
$bitmap.Save($Path, [System.Drawing.Imaging.ImageFormat]::Png)
}
finally {
$graphics.Dispose()
$bitmap.Dispose()
}
}
Save-ScreenCapture -Path (Join-Path $env:USERPROFILE 'Picturescapture.png')Use an absolute path for unattended jobs. A relative path is resolved from the process’s working directory, which may differ between an interactive shell and Task Scheduler.
Schedule automatic captures
The capture API needs an interactive desktop. Configure a scheduled task to run only when the target user is logged on; a task running as noninteractive SYSTEM has no desktop screen to copy. This is guidance from a Microsoft Q&A answer, not a guarantee for every Windows configuration.
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- Save your script, for example as
C:Scriptscapture.ps1. - Open Task Scheduler and choose Create Task.
- On General, select the user account and choose Run only when user is logged on.
- On Triggers, add the schedule or event that should start the capture.
- On Actions, select Start a program. Use
powershell.exefor Windows PowerShell, or the full path topwsh.exefor PowerShell 7. Add arguments such as-NoProfile -ExecutionPolicy Bypass -File "C:Scriptscapture.ps1". - On Conditions, remove power or idle restrictions that would prevent the required run.
- Run the task manually once while logged on and inspect the output directory and Task Scheduler history.
Compatibility and capture limitations
- This is Windows desktop code. The available material does not establish a complete compatibility matrix for Windows PowerShell 5.1, PowerShell 7, modern .NET, or non-Windows systems, so verify the exact host you deploy.
- Secure desktops, protected video, remote sessions, mixed-DPI monitors, and cursor inclusion can behave differently. Test those cases rather than promising that ordinary desktop capture will include them.
- The API can report a
Win32Exception. Record the host, coordinates, dimensions, and account when diagnosing one. - Large, high-resolution bitmaps consume memory proportional to width × height × color depth. Capture only the region you need for frequent jobs, and dispose objects after every image.
Troubleshooting
“Unable to find type” or missing assembly errors
Run the two Add-Type lines before creating screen or drawing objects. If the host is not Windows desktop-capable, this API is the wrong capture method; use a platform-appropriate tool instead.
The file is created but black or blank
Confirm that a user is logged on and the desktop is unlocked and visible. A noninteractive scheduled task, secure desktop, protected content, or remote-session policy can prevent ordinary pixels from being available.
Only one monitor appears
PrimaryScreen.Bounds intentionally captures one display. Use AllScreens and the virtual-desktop function for a combined image, or pass the coordinates of the specific monitor you want.
The image is cropped or shifted
Print the chosen rectangle and compare it with each monitor’s Bounds. Negative coordinates are normal when a monitor is positioned left or above the primary display. Mixed scaling requires validation on the actual machine.
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Check that the task uses the same account, executable, script path, working directory, and “Run only when user is logged on” setting as your successful manual test. Review Task Scheduler history and write errors to a log file.
Repeated captures slow down or exhaust memory
Dispose Graphics and Bitmap in a finally block, avoid unnecessarily large rectangles, and stagger captures instead of starting many simultaneous PowerShell processes.
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Or skip the browser setup
If what you really need is a screenshot of a public web page rather than the pixels on your Windows desktop, ScreenshotNeo makes one GET request and returns PNG, JPEG, WebP, or PDF. It accepts cookie and consent banners before capture and removes more than 60 known consent platforms, newsletter popups, and chat widgets. Bot checks, CAPTCHAs, blank pages, timeouts, failed loads, and cache hits are not billed, and response headers identify the page verdict and billing status.
See the parameter reference in the ScreenshotNeo documentation. The same endpoint can be called from PowerShell with Invoke-WebRequest:
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Invoke-WebRequest -Uri $uri -OutFile 'shot.webp'Equivalent requests are useful in mixed-language automation:
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open("shot.webp", "wb").write(r.content)const q = new URLSearchParams({ access_key: 'YOUR_API_KEY', url: 'https://stripe.com' });
const res = await fetch(`https://api.screenshotneo.com/v1/shot?${q}`);ScreenshotNeo also provides an MCP server with take_screenshot, get_page_info, and capture_pdf tools for Claude, Cursor, and other MCP clients. Every plan includes its features; the Free plan includes 1,000 shots per month with no card, and paid plans start at $5 for 3,000 shots. Create a free ScreenshotNeo account.
FAQ
Can this capture the mouse pointer?
The documented CopyFromScreen operation copies screen pixels; the available material does not establish guaranteed cursor inclusion. If the pointer matters, test the exact Windows configuration and consider a separate cursor-rendering step.
Can I capture a minimized window?
This method captures the visible desktop rectangle, not an off-screen or minimized window’s render surface. Bring the target content onto the visible desktop or use an application-specific automation API.
Where should I store screenshots from a long-running job?
Use a dedicated directory with an absolute path, a predictable naming scheme, and a retention policy. Ensure the task account has write permission and monitor disk usage.
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Frequently Asked Questions
Can this capture the mouse pointer?
The documented CopyFromScreen operation copies screen pixels; guaranteed cursor inclusion is not established, so test your configuration or add a separate cursor-rendering step.
Can I capture a minimized window?
No. The method captures visible desktop pixels, not a minimized window’s off-screen render surface.
Where should I store screenshots from a long-running job?
Use an absolute, writable directory, predictable names, and retention controls so disk usage remains bounded.
Is PowerShell required for ScreenshotNeo?
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