APIs › Document & File Utilities › PDF Compression

PDF Compression

Reduces PDF size by recompressing images and pruning redundant objects, reporting before and after sizes.

POST /v1/pdf/compress $0.03 per call

Specification

Endpoint

POST /v1/pdf/compress

Price

$0.03 per call · tier strategy_intelligence

Payment

x402 on X Layer (chain 196) · settled in USDG or USDT0 · scheme exact

Data source

Local sandboxed processing of the uploaded file

Timeout

120 seconds

Max request

20 MB

Version

1.0.0

Calling it

The first call returns a 402 with the payment challenge. Retry with a signed authorisation in the X-PAYMENT header — see the payment guide for the exact shape.

curl -i -X POST "https://api.dana-edu.pp.ua/v1/pdf/compress" \
  -H "content-type: application/json" \
  -d '{ ... }'

Response

Real output, captured by running this endpoint at build time — not written by hand. Volatile fields such as timestamps are elided. Captured 2026-07-30.

{
  "original_size_bytes": 1764,
  "compressed_size_bytes": 1711,
  "reduction_bytes": 53,
  "reduction_percent": 3,
  "images_recompressed": 0,
  "page_count": 3,
  "settings": {
    "image_quality": 60,
    "downsample_dpi": 150
  },
  "output_filename": "<varies per call>",
  "output_base64": "<base64 payload elided from the published example>"
}

Every response is wrapped in the same envelope: data plus warnings, sources, confidence, informational_only and a measured processing_ms. See the envelope reference.

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