PDFCoreLab

High-performance PDF compression API powered by Ghostscript

Upload & Compress

Upload PDFs up to 50 MB and compress them with five quality presets — from screen-optimized to prepress.

Async Processing

Jobs are queued and processed in the background. Poll the status or use webhooks to know when they're done.

Signed Downloads

Download original and compressed files via time-limited signed URLs — no extra auth step required.

Quick Start

curl -X POST https://pdfcorelab.com.sourov.me/api/v1/pdf-compressions \
  -H "X-API-Key: YOUR_API_KEY" \
  -F "pdf=@document.pdf" \
  -F "preset=ebook"

Returns 202 Accepted with a compression resource you can poll for status.

Compression Presets

Preset	DPI	Best For
`screen`	72	Smallest file — screen viewing only
`ebook`	150	Digital distribution
`printer`	300	High quality printing
`prepress`	300+	Professional prepress output
`default`	—	Ghostscript defaults

API Documentation Get Your API Key

Need an API key? Sign up for free to create your API key and start compressing PDFs.