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PDF compressor

PDF

Make a PDF smaller by downsampling its images. Choose how far: screen (smallest), ebook, printer or prepress.

What it does

  • Four levels, from screen to prepress
  • Grayscale for extra savings
  • Duplicate images stored once
  • Original returned if it cannot shrink

Good for

  • Email size limits
  • Upload portals
  • Archiving scans

Made for scanned documents and image-heavy PDFs. Text-only PDFs are usually small already.

Example

POST https://bloodweb.net/api/v1/pdf-compress

curl -H "Authorization: Bearer YOUR_KEY" -F file=@scan.pdf -F level=ebook https://bloodweb.net/api/v1/pdf-compress -o smaller.pdf

Options

NameDescription
file
file		 The PDF, up to 50MB.
level screen: images at 72 DPI, smallest. ebook: 150 DPI, good for email. printer: 300 DPI. prepress: 300 DPI, colour kept for print shops.
One of: screen, ebook, printer, prepress
Default: ebook
grayscale Convert everything to shades of grey. Often halves a scanned colour document again.
Default: false

Returns

The smaller PDF, with X-Original-Bytes and X-Output-Bytes. If it would not get smaller, the original comes back with X-Kept-Original: true.