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.
What is missing, broken, or could be better on this tool? Tell us — we read every suggestion.
✅ Thanks — your suggestion has been received. Suggestions like yours shape what we build next.