Choose a PDF and this tool compresses it towards under 1 MB (1024,000 bytes max target). It first tries a lossless rebuild; if that is not enough it re-renders pages at step-by-step lower resolutions until the target is met — and if the target is genuinely unreachable for your file, you get the smallest version it could make, with the status line saying so honestly. Runs fully in your browser — nothing is uploaded.
An upload form says “PDF, max 1 MB”? This tool squeezes your file under the cap — and tells you plainly if the cap cannot be met.
100% free · No sign-up · No daily limits · No watermarks · Processed in your browser — files never leave your device
Compress a PDF towards under 1 MB: the size email and most uploads never argue with. Lossless first, then a measured ladder — most files fit early, at near-original quality.
A 6 MB photo-heavy portfolio needs emailing. At 940 KB it makes the inbox limit with photographs that still look like themselves — because the ladder stopped as soon as the cap was met, not before.
Same measured engine as the family: lossless structural rebuild weighed first, then page rendering at descending resolution/quality steps, each output weighed, first fit under 1,048,576 bytes wins. Starting steps are high quality (~150 DPI), so typical documents land early on the ladder.
Yes — comfortably below every common attachment limit (10–25 MB) and quick to send and receive; it is the “just make it emailable” target.
As little as the cap allows: the ladder stops at the first fit, so a file needing only a small squeeze keeps high resolution.
Because the cap in front of you is a specific number from a form — one click with that number beats configuring a general compressor under time pressure. The engine is identical; only the target differs.
You get the smallest result plus a plain explanation. Splitting the document (Split PDF by Size) is the usual next step.
No. Compression runs in your browser only.