Utility1 credit / call
POST /api/v1/tools/pdf/compressPDF Compress
Lossless PDF compression — typical 5–85% savings
Compress PDF files losslessly by deflating content streams (zlib level-9) and consolidating the cross-reference table. No visual quality loss. Typical savings range from 5% on already-optimised PDFs to 85% on PDFs with uncompressed content streams.
How it works
Accepts a multipart PDF upload, applies zlib deflate to every uncompressed content stream, consolidates the xref table, and returns the compressed PDF binary with savings headers.
What you could build
PaperSlim
PDF toolkit for law firms — merge, split, compress
$3K–$6K MRR
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MailReady
Compress PDFs before email attachment in CRMs
$1K–$2K MRR
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StorageSaver
Batch-compress document archives on upload
$2K–$5K MRR
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Parameters
filerequiredSource PDF file to compress· e.g.
report.pdfExample request
Example response
Ready to use PDF Compress?
Free plan — 100 calls/month, no credit card.