How to convert PDF to PNG from URL asynchronously for PDF to image API in PowerShell using PDF.co Web API

Step By Step Tutorial: how to convert PDF to PNG from URL asynchronously for PDF to image API in PowerShell

Here you may find thousands pre-made source code pieces for easy implementation in your own programming projects. PDF.co Web API was made to help with PDF to image API in PowerShell. PDF.co Web API is the Web API with a set of tools for documents manipulation, data conversion, data extraction, splitting and merging of documents. Includes image recognition, built-in OCR, barcode generation and barcode decoders to decode bar codes from scans, pictures and pdf.

This rich sample source code in PowerShell for PDF.co Web API includes the number of functions and options you should do calling the API to implement PDF to image API. Open your PowerShell project and simply copy & paste the code and then run your app! Use of PDF.co Web API in PowerShell is also explained in the documentation included along with the product.

PDF.co Web API – free trial version is on available our website. Also, there are other code samples to help you with your PowerShell application included into trial version.

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ConvertPdfToPngFromUrlAsynchronously.ps1
      
# Cloud API asynchronous "PDF To PNG" job example. # Allows to avoid timeout errors when processing huge or scanned PDF documents. # The authentication key (API Key). # Get your own by registering at https://app.pdf.co/documentation/api $API_KEY = "***********************************" # Direct URL of source PDF file. $SourceFileUrl = "https://bytescout-com.s3.amazonaws.com/files/demo-files/cloud-api/pdf-to-image/sample.pdf" # Comma-separated list of page indices (or ranges) to process. Leave empty for all pages. Example: '0,2-5,7-'. $Pages = "" # PDF document password. Leave empty for unprotected documents. $Password = "" # (!) Make asynchronous job $Async = $true # Prepare URL for `PDF To PNG` API call $query = "https://api.pdf.co/v1/pdf/convert/to/png?password={0}&pages={1}&url={2}&async={3}" -f ` $Password, $Pages, $SourceFileUrl, $Async $query = [System.Uri]::EscapeUriString($query) try { # Execute request $jsonResponse = Invoke-RestMethod -Method Get -Headers @{ "x-api-key" = $API_KEY } -Uri $query if ($jsonResponse.error -eq $false) { # Asynchronous job ID $jobId = $jsonResponse.jobId # URL of generated JSON file available after the job completion; it will contain URLs of result PDF files. $resultJsonFileUrl = $jsonResponse.url # Check the job status in a loop. do { $statusCheckUrl = "https://api.pdf.co/v1/job/check?jobid=" + $jobId $jsonStatus = Invoke-RestMethod -Method Get -Headers @{ "x-api-key" = $API_KEY } -Uri $statusCheckUrl # Display timestamp and status (for demo purposes) Write-Host "$(Get-date): $($jsonStatus.status)" if ($jsonStatus.status -eq "success") { # Download JSON file with URLs of result PDF files $jsonPngUrls = Invoke-RestMethod -Method Get -Uri $resultJsonFileUrl # Download generated PNG files $part = 1; foreach ($url in $jsonPngUrls) { $localFileName = ".\page$($part).png" Invoke-WebRequest -Headers @{ "x-api-key" = $API_KEY } -OutFile $localFileName -Uri $url Write-Host "Downloaded `"$($localFileName)`"" $part++ } break } elseif ($jsonStatus.status -eq "working") { # Pause for a few seconds Start-Sleep -Seconds 3 } else { Write-Host $jsonStatus.status break } } while ($true) } else { # Display service reported error Write-Host $jsonResponse.message } } catch { # Display request error Write-Host $_.Exception }

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run.bat
      
@echo off powershell -NoProfile -ExecutionPolicy Bypass -Command "& .\ConvertPdfToPngFromUrlAsynchronously.ps1" echo Script finished with errorlevel=%errorlevel% pause

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