Compress PDFRight in Your Browser

PDFs balloon for one dominant reason: embedded images. The format already compresses its text, fonts and vector content internally, so a contract that's pure text is naturally small — but the moment a PDF contains scans or photos, it inherits their size. A multi-page scan at high DPI easily reaches tens of megabytes, sailing past email attachment limits and portal caps.

That's why this compressor targets exactly the images inside the PDF: each embedded photo or scan is re-encoded at your chosen quality and sensible resolution, while text, fonts and vector graphics pass through untouched — they stay perfectly sharp and selectable. Scan-heavy documents routinely shrink 50-90%; text-only documents may barely change, and if nothing can be saved you get your original back byte-for-byte.

Where to be careful: documents whose images are the point. Blueprints, medical imaging, photography portfolios and anything where zooming into image detail matters deserve the High setting — or no compression at all. For the everyday cases — signed paperwork, application bundles, receipts, reports with a few figures — Balanced is visually indistinguishable at reading size and cuts the bulk.

Most PDF compressors ask you to upload the document first, which is an odd request for exactly the files people most need to shrink: contracts, statements, IDs, medical records. Here the entire job — parsing the PDF, re-encoding its images, rebuilding the file — happens inside your browser. Your documents never leave your device, verifiably.