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Combine 1-20 images into a single PDF (one page per image; page_size=a4/letter centers each image on a standard page). Output delivery: each produced file ≤10MB comes inline as base64 (files[].file_b64); 10-50MB comes as a one-time download token (files[].download_path, 30min TTL); >50MB total is rejected.
Array of base64 files (max 20 total inputs). Combine freely with file_urls; base64 entries come first in the processing order.
Array of https URLs (each SSRF-guarded and fetched server-side).
Single image as base64 (or use files_b64).
https URL of the input file — fetched server-side through the proxy pool; private/internal/metadata addresses are SSRF-blocked. Max 25MB.
auto = page matches each image; a4/letter = white page, image fitted+centred.
curl -X POST https://api.reefapi.com/file-convert/v1/images_to_pdf \
-H "x-api-key: $REEF_KEY" \
-H "content-type: application/json" \
-d '{"files_b64":"[\"iVBORw0KGgoAAAANSUhEUgAAABgAAAAYCAIAAABvFaqvAAAAH0lEQVR42mN4l+VFFcQwatCoQaMGjRo0atCoQQNvEAB6hKyuf+L5NQAAAABJRU5ErkJggg==\"]"}'Hit Send to run this endpoint live.