This site is built and maintained by Mustak Momin — one person, not a company.
I built it because I kept running into the same problem from the other side: a form that demands a PDF under 200 KB, a compressor that cheerfully produces one, and a document that turns out to be unreadable when you open it. Every tool optimises for handing you a file. Almost none of them tell you the file is now useless.
Why the tools run in your browser
Most PDF sites upload your file to a server, process it there, and send it back. That works, but it means your document — a bank statement, a medical record, a signed contract — sits on someone else's machine, however briefly.
Everything here works differently. The tools are compiled to WebAssembly and run inside the tab you already have open. Your file is read by your own browser, processed by your own CPU, and saved back to your own disk. It never touches a network, so there is nothing for anyone to store, read, leak, or be compelled to hand over.
That is not a promise in a policy document. It is an architectural fact, and you can check it: open your browser's network tab while you compress a file and watch that nothing is sent.
Why it is free
Because it costs almost nothing to run. There is no conversion server, no per-file compute bill, no storage. The site is static files plus an engine that runs on your device. That is the whole reason it can stay genuinely free, instead of giving you two tasks a day and then asking for a card.
No paid tier, no account, no upload limit, no watermark. If a tool ever gains a limit, this page will say so.
What this site is trying to be good at
One thing in particular: hitting an exact file size without destroying the document.
Government portals, exam applications and job forms routinely demand a PDF under 200 KB, or 50 KB, or exactly 1 MB. Most compressors offer "low, medium, high" and leave you guessing.
There is also a technical reason the results elsewhere are often poor. Most browser-based compressors render each page to a picture and save it as a JPEG. JPEG was designed for photographs; on black text against white paper it smears the edges of every letter, and at small sizes the letters dissolve entirely.
For a scanned document this site does something different — the same thing a fax machine or an office scanner does. It converts the page to sharp black-and-white at a higher resolution instead of a blurry grey one at a lower resolution. On a real four-page scanned report, that produced a 70 KB file that was still readable, where the usual approach needed 111 KB and came out unreadable. Smaller and clearer at the same time.
And when the size you have asked for genuinely cannot work, it says so before compressing, and tells you what to do instead.
What it will not do
- Ask you to create an account
- Add a watermark
- Cap how many files you can process
- Claim your file stays private when it does not
The privacy policy has the specifics. If something is broken, get in touch.