PDFSafeCompress PDF
Reduce your PDF's file size while keeping it readable. Your PDF is compressed entirely in your browser and never uploaded.
Drop your PDF file here, or click to browse
Max 50MB · compressed entirely in your browser, never uploaded
How to compress a PDF
Upload your PDF, pick a compression level — Extreme, Recommended, or Less compression — and download the result. Compression runs entirely in your browser using a WebAssembly build of Ghostscript, the same engine many desktop PDF tools use, so your file is never uploaded anywhere.
This is the tool to reach for before emailing a large PDF, uploading one to a portal with a size cap, or just freeing up space — especially for scanned documents, where most of the file size comes from embedded images rather than text.
Frequently asked questions
How much smaller will my PDF get?
It depends heavily on what's inside — a PDF full of high-resolution scanned images usually shrinks a lot, while a mostly-text document has less to compress. The result screen shows exactly how much smaller your specific file got before you download it.
What's the difference between the three compression levels?
Extreme gives the smallest file at the most noticeable quality loss, Recommended is the balanced default most files should use, and Less compression keeps quality closest to the original at a smaller size reduction.
Will compressing make my PDF blurry?
Images can lose some sharpness, especially at the Extreme setting — text stays crisp either way, since compression here mainly re-encodes embedded images rather than rasterizing the whole page.
Is there a file size limit?
Free accounts can compress files up to 50MB — higher than most other tools here, since shrinking large files is the whole point of this one. Premium raises that to 100MB.
Can I target an exact output size, like under 1MB?
Yes — see our dedicated Compress to 100KB, 200KB, 500KB, and 1MB pages, which pick the compression level most likely to hit that target automatically.