Reduce PDF file size
Make a large PDF smaller for email, uploads and storage, to the size you need.
Large PDFs bounce off email limits and upload forms. MarqPDF reduces the file size to a target you choose while keeping the document clear.
Choose a target size
Why is my PDF so large?
Usually it is high-resolution scanned images or embedded fonts. MarqPDF optimises those without wrecking readability.
Reduce to a target size
Pick 1MB, 500KB or a smaller size and compress to fit. See compress to 1MB.
Reduce a scanned PDF
Scans are the biggest offenders. MarqPDF re-samples the images while keeping text sharp.
Frequently asked questions
How do I reduce a PDF for email?
Compress it under your provider's limit (often 25MB, but forms often want 1MB or less) and attach the smaller file.
Do it from code or an AI agent
The same tool is in the MarqPDF API as POST /v1/compress, and in MarqPDF's MCP server as compress_pdf for Claude, Cursor and other AI agents.
curl https://marqpdf.com/v1/compress \
-H "Authorization: Bearer $MARQPDF_API_KEY" \
-H "Content-Type: application/json" \
-d '{"file": "file_…", "target_mb": 1}'API reference · Use it from an AI agent (MCP) · JavaScript and Python SDKs · Chain it with other steps