PowerShell, ImageMagick, GhostScript para extrair cada página de um PDF como uma imagem separada

Gostaria de pegar um PDF e extrair cada página como uma imagem. Consegui fazer isso com ImageMagick e GhostScript, mas os resultados são de qualidade incrivelmente ruim. Eu tentei muitas opções de saída diferentes sem sorte. O script abaixo deve ser bastante autoexplicativo. Funciona, mas a qualidade da imagem é realmente péssima em comparação com a abertura do PDF.

• Existe uma maneira de usar o ImageMagick de forma que a saída das imagens seja de boa qualidade?
• Que tal usar outras ferramentas, mas de preferência de forma programática, já que processar muitos PDFs seria estranho se eu tivesse que fazê-los um por um em uma GUI.

# Extract each page from a PDF as a png using ImageMagick
# ImageMagick requires GhostScript for PDF manipulation so have to make sure that is installed
# Current install folder: C:\Program Files\ImageMagick-7.1.1-Q16-HDRI
# Chocolatey package does not inclued the 'identify.exe' command

# Path to the PDF file
$pdfFilePath = "C:\0\MyFile.pdf"
# Output directory for images
$outputDirectory = "C:\0"
# Image type to output to (tried jpg, png, tiff etc)
$imageExtension = "jpg"

# Check if running as Admin
if (!([Security.Principal.WindowsPrincipal][Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole] "Administrator")) { Write-Host "Please run this script as an administrator."; exit }
# Check if Chocolatey is installed, if not, install it
if (!(Test-Path "$env:ProgramData\chocolatey")) { Set-ExecutionPolicy Bypass -Scope Process -Force; [System.Net.ServicePointManager]::SecurityProtocol = [System.Net.ServicePointManager]::SecurityProtocol -bor 3072; iex ((New-Object System.Net.WebClient).DownloadString('https://chocolatey.org/install.ps1')) }
# Check for magick.exe on path; if not installed, install ImageMagick
$imageMagickExePath = Get-ChildItem -Path "C:\Program Files\ImageMagick-*" -Filter "magick.exe" -Recurse | Select-Object -First 1 -ExpandProperty FullName
if (!(Get-Command "magick.exe" -ea silent) -and ($null -eq $imageMagickExePath)) { Write-Host "ImageMagick not found. Installing..."; choco install imagemagick -y }
if ($null -eq $imageMagickExePath) { Write-Host "Error: magick.exe not found at $imageMagickExePath"; exit }
Write-Host "magick.exe found at '$imageMagickExePath'"
# Check for gswin64.exe on path; if not installed, install GhostScript
$gsExePath = Get-ChildItem -Path "C:\Program Files\gs\gs*\bin" -Filter "gswin64.exe" -Recurse | Select-Object -First 1 -ExpandProperty FullName
if (!(Get-Command "gswin64.exe" -ea silent) -and ($null -eq $gsExePath)) { Write-Host "GhostScript not found. Installing..."; choco install ghostscript -y }
if ($null -eq $gsExePath) { Write-Host "Error: gswin64.exe not found, this is required by ImageMagick for PDF manipulation"; exit }
Write-Host "gswin64.exe found at '$gsExePath'"
# Add Ghostscript directory to the PATH temporarily so that ImageMagick can use it
$env:Path += ";$($gsExePath | Split-Path -Parent)"

# Create the output directory if it doesn't exist
if (-not (Test-Path $outputDirectory)) { New-Item -ItemType Directory -Force -Path $outputDirectory | Out-Null }

# Convert each page of the PDF to PNG
$imageNamePrefix = [System.IO.Path]::GetFileNameWithoutExtension($pdfFilePath)
$imageNamePrefix = $imageNamePrefix -replace '\s+', '_'

# Use ImageMagick's identify command to get the total number of pages in the PDF
$numberOfPages = (identify "$pdfFilePath" 2>$null | Measure-Object -Line).Lines
Write-Host "'$pdfFilePath' has $numberOfPages pages"
# Use ImageMagick's convert command to convert PDF
Start-Process $imageMagickExePath -ArgumentList "convert `"$pdfFilePath`" -density 600 -quality 100 -antialias -resize 300% `"$outputDirectory\$imageNamePrefix-%d.$imageExtension`"" -NoNewWindow -Wait

# Determine the maximum number of digits to normalise all page numbers to that length
$maxDigits = $numberOfPages.ToString().Length

# Normalize page numbers
for ($i = 0; $i -le $numberOfPages; $i++) {
    $pageNumber = "{0:D$maxDigits}" -f $i
    $oldFileName = Join-Path $outputDirectory "$imageNamePrefix-$i.$imageExtension"
    $newFileName = Join-Path $outputDirectory "$imageNamePrefix-$pageNumber.$imageExtension"
    if ((Test-Path $oldFileName) -and !(Test-Path $newFileName)) { Rename-Item -Path $oldFileName -NewName $newFileName }
}

# Remove the Ghostscript directory from the PATH
$env:Path = $env:Path -replace [regex]::Escape(";"+($gsExePath | Split-Path -Parent))

# command-line tools for manipulating PDFs:
# https://libgen.rs/search.php?req=pdf+hacks&lg_topic=libgen&open=0&view=simple&res=25&phrase=1&column=defs
# pdftk (PDF Toolkit): pdftk is a command-line tool for manipulating PDF files. It can merge, split, rotate, watermark, and decrypt PDF files.
# QPDF: QPDF is another command-line tool for structural, content-preserving transformation of PDF files. It's particularly useful for linearizing PDFs, decrypting, and compressing them.
# Poppler Utilities (pdftohtml, pdftotext, pdfimages): Poppler is a PDF rendering library and its utilities provide command-line tools for converting PDFs to various formats such as HTML, text, and images. pdftohtml converts PDF to HTML, pdftotext converts PDF to plain text, and pdfimages extracts images from PDFs.
# Ghostscript: Ghostscript is a suite of software based on an interpreter for Adobe Systems' PostScript and Portable Document Format (PDF) page description languages. It can be used for a wide variety of tasks including converting PDFs to various formats, merging PDFs, and more.
# MuPDF: MuPDF is a lightweight PDF, XPS, and E-book viewer. It also includes command-line tools for extracting text and images from PDFs.
# PDFMiner: PDFMiner is a tool for extracting information from PDF documents. It includes a command-line tool for extracting text, images, and other content from PDFs.